NEET Class 7 Biology

Digestion Multiple Choice Question and Answers

Question 1. The sequential steps of digestion are

1. Ingestion, digestion, assimilation, excretion
2. Digestion, ingestion, assimilation, excretion
3. Ingestion, digestion, excretion, assimilation
4. Excretion, assimilation, digestion, ingestion

Answer: 1. Ingestion, digestion, assimilation, excretion

Question 2. The main role of the digestive system is to facilitate the

1. Filtration of cellular wastes, toxins and excess water
2. Exchange of gases between the blood and the organs
3. Relay of chemical signals through the body and brain
4. Breakdown and absorption of nutrients essential for growth

Answer: 4. Breakdown and absorption of nutrients essential for growth

Question 3. The mouth, Oesophagus and stomach are organs of the

1. Respiratory system
2. Digestive system
3. Endocrine system
4. Excretory system

Answer: 2. Digestive system

Question 4. The digestive system begins with the

1. Oesophagus
2. Intestine
3. Stomach
4. Mouth

Answer: 2. Intestine

Question 5. What is the role of pre-molars?

1. Grinding
2. Cutting
3. Biting
4. Slicing

Answer: 1. Grinding

Question 6. Teeth, which are a part of the buccal cavity, help in the mechanical breakdown of food. The given illustration depicts the type of teeth present in the mouth. The teeth that perform the function of piercing and tearing are labelled as

1. 1
2. 2
3. 3
4. 4

Answer: 2. 2

Question 7. The teeth that help in the biting of food are known as

1. Incisors
2. Canines
3. Premolars
4. Molars

Answer: 1. Incisors

Question 8. The respective number of incisors, canines, and pre-molars in a human adult are

1. 12, 4, 4
2. 8, 4, 8
3. 8, 8, 4
4. 4, 4, 12

Answer: 2. 8, 4, 8

Question 9. In humans, the total number of piercing and tearing teeth is

1. 4
2. 8
3. 12
4. 16

Answer: 1. 4

Question 10. What is the role of molars?

1. Grinding
2. Cutting
3. Tearing
4. Biting

Answer: 1. Grinding

Question 11. What is the role of the tongue during the digestion of food?

1. Grinding
2. Mixing
3. Cutting
4. Chewing

Answer: 2. Mixing

Question 12. The given illustration represents different regions of taste on the tongue. Suppose Radha eats a salty food item Which labelled region on the tongue will detect the salty taste of the food?

1. 1
2. 2
3. 3
4. 4

Answer: 3. 3

Question 13. Salivary glands are present in the buccal cavity and secrete saliva that helps in the digestion of food. Which complex food nutrient is broken down by the saliva into simple compounds?

1. Fats
2. Starch
3. Proteins
4. Vitamins

Answer: 2. Starch

Question 14. The major organs of the human digestive system are located in the abdominal cavity. Which of the following organs is not a part of the digestive system?

1. Oesophagus
2. Stomach
3. Intestine
4. Trachea

Answer: 4. Trachea

Question 15. What is the function of the oesophagus?

1. Churning food
2. Absorbing the digested food
3. Removing the undigested food from the body
4. Transporting food from the mouth to the stomach

Answer: 4. Transporting food from the mouth to the stomach

Question 16. Oesophagus transports food from the _____1_____ to the _____2______. The information in which alternative completes the given statement?

1. 1- buccal cavity 2- stomach
2. 1- stomach 2- small intestine
3. 1- small intestine 2- anus
4. 1- anus 2- buccal cavity

Answer: 1. 1- buccal cavity 2- stomach

Question 17. Which secretion checks the growth of pathogenic bacteria in the stomach?

1. Pancreatic juice
2. Gastric juice
3. Saliva
4. Bile

Answer: 2. Gastric juice

Question 18. Which organ secretes hydrochloric acid to kill the bacteria present in the food?

1. Small intestine
2. Stomach
3. Large intestine
4. Oesophagus

Answer: 2. Stomach

Question 19. The gastrointestinal tract between the oesophagus and the large intestine includes the 1 and the 2. The given statement is correctly completed by alternative

1. 1- stomach 2- small intestine
2. 1- small intestine 2- pancreas
3. 1- pancreas 2- liver
4. 1-liver 2-stomach

Answer: 1. 1- stomach 2- small intestine

Question 20. If the stomach were not a part of the digestive system, then

1. It would not have been possible to consume large quantities of food
2. The organs of the excretory system would become highly inefficient
3. One would continuously feel hungry
4. It would not be necessary to chew food at all

Answer: 1. It would not have been possible to consume large quantities of food

Question 21. Digestion of ____1_____ begins in the stomach and is completed in the small intestine where it is broken down into ____2_____. The information in which alternative completes the given statement?

1. 1- carbohydrates 2- glucose
2. 1-proteins 2-glucose
3. 1- carbohydrates 2- amino acids
4. 1-proteins 2-amino acids

Answer: 4. 1-proteins 2-amino acids

Question 22. ______1_____ is the part of the alimentary canal that transfers food from the mouth to the _____2_____. The information in which alternative completes the given statement?

1. 1- oesophagus 2-stomach
2. 1-oesophagus 2-small intestine
3. 1-liver 2-stomach
4. 1-liver 2-small intestine

Answer: 1. 1- oesophagus 2-stomach

Question 23. What is the function of the stomach?

1. Storing bile juice
2. Absorbing the digested food
3. Receiving secretions from the liver and pancreas
4. Secreting mucous, hydrochloric acid, and digestive juices

Answer: 4. Secreting mucous, hydrochloric acid, and digestive juices

Question 24. The inner lining of the stomach secretes ____1____ that protects the lining of the stomach from the action of ____2___. The information in which alternative completes the given statement?

1. 1- mucous 2- hydrochloric acid
2. 1- hydrochloric acid 2- bile juice
3. 1- bile juice 2- digestive juices
4. 1- digestive juices 2-mucous

Answer: 1. 1- mucous 2- hydrochloric acid

Question 25. The given represents the passage of food through the alimentary canal. At point B, the food is passing through

1. Mouth
2. Stomach
3. Small intestine
4. Large intestine

Answer: 2. Stomach

Question 26. The process of absorption of nutrients takes place in

1. Stomach
2. Oesophagus
3. Large intestine
4. Small intestine

Answer: 4. Small intestine

Question 27. Which is the longest part of the digestive tract with respect to length?

1. Oesophagus
2. Small intestine
3. Large intestine
4. Colon

Answer: 2. Small intestine

Question 28. Which of the following statements is correct for villi?

1. It helps in swallowing of food.
2. It protects the inner lining of the stomach.
3. It breaks down proteins into peptides.
4. It increases the surface area for food absorption.

Answer: 4. It increases the surface area for food absorption.

Question 29. The information in Which alternative completes the given table?

1. 1- Large intestine 2- Killing of bacteria
2. 1- Large intestine 2- Absorption of water
3. 1- Small intestine 2- Killing of bacteria
4. 1- Small intestine 2- Absorption of water

Answer: 3. 1- Small intestine 2- Killing of bacteria

Question 30. During the process of _____1_____, the digested food in the small intestine enters the ____2______. The information in which alternative completes the given statement?

1. 1- absorption 2- blood vessels
2. 1- absorption 2- food pipe
3. 1- assimilation 2-blood vessels
4. 1-assimilation 2-food pipe

Answer: 1. 1- absorption 2- blood vessels

Question 31. Which part of the alimentary canal has finger-like projections called villi for the absorption of food?

1. Large intestine
2. Small intestine
3. Stomach
4. Oesophagus

Answer: 2. Small intestine

Question 32. The breakdown of food is completed in the

1. Large intestine
2. Small intestine
3. Stomach
4. Rectum

Answer: 2. small intestine

Question 33. The inner lining of the small intestine has numerous finger-like projections called ______1______ that take part in the ____2______ of food. The information in which alternative completes the given statement?

1. 1- pseudopodia 2- absorption
2. 1-pseudopodia 2-digestion
3. 1-villi 2-absorption
4. 1-villi 2-digestion

Answer: 3. 1-villi 2-absorption

Question 34. The given diagram illustrates the human digestive system. Which part of the human digestive system helps in the absorption of water from undigested food?

1. 1
2. 2
3. 3
4. 4

Answer: 3. 4

Question 36. Which of the following events takes place in the large intestine?

1. Absorption of nutrients
2. Absorption of water
3. Digestion of starch
4. Digestion of fats

Answer: 2. Absorption of water

Question 37. The liver is an important gland of the digestive system. The primary function of the liver is to

1. Produce mucous
2. Produce hydrochloric acid
3. Help in the digestion of fats
4. Help in the digestion of proteins

Answer: 3. Help in the digestion of fats

Question 38. The given illustrates the human digestive system. The buccal cavity is marked as 1, the stomach as 2, the gall bladder as 3, and the liver as 4. Which part of the human digestive system produces bile?

1. 1
2. 2
3. 3
4. 4

Answer: 4. 4

Question 39. Jaundice is a disease that affects the liver. A person suffering from jaundice will face maximum difficulty in

1. Digesting carbohydrates
2. Absorbing proteins
3. Absorbing water
4. Digesting fats

Answer: 4. Digesting fats

Question 40. Many secretory glands are present in the digestive glands. These glands release digestive juices for the digestion of food. Which organ of the digestive system secretes bile?

1. Liver
2. Pancreas
3. Small intestine
4. Large intestine

Answer: 1. Liver

Question 41. The given illustrates some labelled parts of the human digestive system. The structures that secrete digestive juices are labelled as

1. 1, 2, and 3
2. 2, 4, and 6
3. 1, 3, and 6
4. 4, 5, and 6

Answer: 3. 1, 3, and 6

Question 42. The liver produces bile which helps in fat digestion, which occurs in the duodenum. The bile is secreted into the duodenum and excess bile is stored in the organ present between the liver and the duodenum. Which organ stores excess bile secreted by the liver?

1. Stomach
2. Gall bladder
3. Small intestine
4. Urinary bladder

Answer: 2. Gall bladder

Question 43. The liver is the largest gland present in the human body. The bile juice secreted by the liver is stored in the

1. Salivary glands
2. Small intestine
3. Large intestine
4. Gall bladder

Answer: 4. Gall bladder

Question 44. Which of the following organs help in digesting sugar?

1. Liver
2. Rectum
3. Stomach
4. Pancreas

Answer: 4. Pancreas

Question 45. The liver secretes bile juice that takes part in the digestion of fats. Digestion of fats results in the formation of which substance?

1. Glucose
2. Glycerol
3. Amino acids
4. Hydrochloric acid

Answer: 2. Glycerol

Question 46. Salivary glands are present in the

1. Mouth
2. Throat
3. Tongue
4. Oesophagus

Answer: 1. Mouth

Question 47. During the process of digestion, starch is broken down into

1. Glucose
2. Sucrose
3. Amino acids
4. Fatty acids

Answer: 1. Glucose

Question 48. A person suffers from a disorder in which his stomach is unable to produce gastric acid. What is the result of the given condition?

1. Improper digestion of fat
2. Improper digestion of lipids
3. Improper digestion of glucose
4. Improper digestion of proteins

Answer: 4. Improper digestion of proteins

Question 49. The saliva produced in the mouth is responsible for the digestion of

1. Carbohydrates
2. Vitamins
3. Proteins
4. Fats

Answer: 1. Carbohydrates

Question 50. Shruti took a teaspoonful of boiled rice in test tube 1 and a teaspoonful of chewed rice in test tube 2 She then added 3- 4 mL of water to both the test tubes and then added 2-3 drops of iodine solution to each of the test tubes. The result in terms of changes in colour was observed. Which of the following statements regarding the observation made by Shruti is correct?

1. The contents of test tube 1 will show no change in colour while the contents of test tube 2 will show a colour change.
2. The contents of test tube 2 will show no change in colour while the contents of test tube 1 will show a colour change.
3. The contents of both test tubes 1 and 2 will not show any colour change.
4. The contents of both test tubes 1 and 2 will show changes in colour.

Answer: 2. The contents of test tube 2 will show no change in colour while the contents of test tube 1 will show a colour change.

Question 51. The incisors in rabbits are used for

1. Cutting
2. Biting
3. Tearing
4. Grinding

Answer: 1. Cutting

Question 52. The gap between incisors and premolars in rabbits is called

1. Diasteina
2. Diastema
3. Triastema
4. None

Answer: 2. Diastema

Question 53. Which of the following allows the tongue to manipulate the food

1. Diasteina
2. Diastema
3. Triastema
4. None

Answer: 2. Diastema

Question 54. Which of the following is absent in carnivores?

1. Incisors
2. Canines
3. Premolars
4. None

Answer: 4. None

Question 55. In dogs, which of the following helps in grinding and crushing the bones?

1. Incisors
2. Canines
3. Premolars
4. Molars

Answer: 4. Molars

Question 56. Which of the following parts of the tooth is embedded in the jaw?

1. Root
2. Crown
3. Neck
4. None

Answer: 1. Root

Question 57. The hardest substance in our body is

1. Enamel
2. Dentine
3. Pulp cavity
4. None

Answer: 1. Enamel

Question 58. Which of the following contain blood vessels and nerves?

1. Enamel
2. Dentine
3. Pulp cavity
4. None

Answer: 3. Pulp cavity

Question 59. Teeth problems include

1. Plaque
2. Cavities
3. Decay
4. All

Answer: 4. All

Question 60. Which of the following should be consumed to prevent plaque formation?

1. Foods that contain sufficient calcium
2. Foods that contain sufficient phosphorus
3. Foods that contain sufficient vitamin D
4. All the above

Answer: 4. All the above

Question 61. Plaque formation can be avoided by

1. Not eating foods like sweets, chocolates and ice-creams
2. Cleaning teeth after eating sweet, sticky food
3. Using fluoride toothpaste
4. All the above

Answer: 4. All the above

Question 62. Dental hygiene is very important. It involves keeping the mouth clean and protecting it from dental caries. What causes dental caries?

1. Poor nutrition
2. Bacteria
3. Virus
4. Excess nutrition

Answer: 2. Bacteria

Digestion Conceptive Worksheet

Question 1. Which step occurs after ingestion?

1. Assimilation
2. Absorption
3. Digestion
4. Egestion

Answer: 3. Digestion

Question 2. Which of the following organs is not a part of the digestive system?

1. Kidney
2. Stomach
3. Large intestine
4. Small intestine

Answer: 1. Kidney

Question 3. Which of the following events does not occur inside the mouth?

1. Wetting of the ingested food with the help of saliva
2. Crushing of the ingested food with the help of teeth
3. Breakdown of proteins into simpler compounds
4. Breakdown of starch into simple sugar

Answer: 3. Breakdown of proteins into simpler compounds

Question 4. The teeth used to bite an apple are the

1. Molars
2. Canines
3. Incisors
4. Premolars

Answer: 3. Incisors

Question 5. How many teeth does a human adult have?

1. 26
2. 28
3. 30
4. 32

Answer: 4. 32

Question 6. Teeth are classified according to their shape and function. Incisors are chisel-shaped front teeth. Incisors are specialized for

1. Cutting
2. Tearing
3. Piercing
4. Grinding

Answer: 1. Cutting

Question 7. Teeth are structures present in the jaws of human beings and animals. In human beings, teeth help in biting, tearing, and chewing of food. Which of the following functions is performed by incisors?

1. Biting
2. Tearing
3. Chewing
4. Grinding

Answer: 1. Biting

Question 8. What is the role of canines?

1. Cutting
2. Biting
3. Tearing
4. Grinding

Answer: 3. Tearing

Question 9. The given illustration represents different regions of taste on the tongue. The region on the tongue that detects a sweet taste is labelled as

1. 1
2. 2
3. 3
4. 4

Answer: 4. 4

Question 10. The labelled parts in the given illustrate the location of different taste buds on the tongue. The location on the tongue that possesses the taste buds to identify bitter taste is labelled as

1. 1
2. 2
3. 3
4. 4

Answer: 4. 4

Question 11. Oesophagus connects the

1. Mouth to the small intestine
2. Small intestine to the colon
3. Mouth to the stomach
4. Stomach to the large intestine

Answer: 3. Mouth to the stomach

Question 12. Which part of the alimentary tract is not involved in digestion?

1. Stomach
2. Mouth
3. Oesophagus
4. Small intestine

Answer: 3. Oesophagus

Question 13. Which of the following organs does not secrete digestive enzymes?

1. Mouth
2. Liver
3. Oesophagus
4. Stomach

Answer: 3. Oesophagus

Question 14. The stomach does not perform the function of

1. Storing food
2. Absorbing nutrients
3. Mixing food with gastric juices
4. Mashing food into smaller pieces

Answer: 2. Absorbing nutrients

Question 15. The food from the stomach enters the

1. Rectum
2. Oesophagus
3. Small intestine
4. Large intestine

Answer: 3. Small intestine

Question 16. Digestion of food occurs with the help of

1. Intestines and kidneys
2. Heart and intestines
3. Stomach and mouth
4. Kidneys and mouth

Answer: 3. Stomach and mouth

Question 17. Which of the following organs aids in the digestion of food?

1. Stomach
2. Kidneys
3. Lungs
4. Skin

Answer: 1. Stomach

Question 18. Which of the following functions is not performed by the stomach?

1. Storing food for some time
2. Absorbing certain chemicals
3. Breaking food into smaller particles
4. Releasing bile for the digestion of fat

Answer: 4. Releasing bile for the digestion of fat

Question 19. Where does the digestion of proteins start in the human body?

1. Mouth
2. Stomach
3. Liver
4. Small intestine

Answer: 2. Stomach

Question 20. Which of the following functions is not performed by the stomach?

1. Storage of food
2. Adsorption of water
3. Digestion of protein
4. Secretion of bile

Answer: 4. Secretion of bile

Question 21. The process in which the digested food in the small intestine enters the blood vessels is known as

1. Ingestion
2. Assimilation
3. Digestion
4. Absorption

Answer: 4. Absorption

Question 22. From the stomach, food passes into the

1. Small intestine
2. Large intestine
3. Oesophagus
4. Rectum

Answer: 1. Small intestine

Question 23. Food is absorbed into the blood in the

1. Stomach
2. Oesophagus
3. Small intestine
4. Large intestine

Answer: 3. Small intestine

Question 24. Maximum absorption of nutrients from the digested food takes place in the

1. Stomach
2. Oesophagus
3. Small intestine
4. Large intestine

Answer: 3. Small intestine

Question 25. The absorption of nutrients from digested food occurs in the

1. Rectum
2. Oesophagus
3. Large intestine
4. Small intestine

Answer: 4. Small intestine

Question 26. What is the function of the small intestine?

1. Releasing bile juice
2. Transferring food to the stomach
3. Absorbing water from undigested food
4. Absorbing nutrients from the digested food

Answer: 4. Absorbing nutrients from the digested food

Question 27. The given shows the digestive system. In the given, the part that is labelled A is the

1. Rectum
2. Oesophagus
3. Large intestine
4. Small intestine

Answer: 3. Large intestine

Question 28. The absorption of water from undigested food takes place in the

1. Small intestine
2. Large intestine
3. Stomach
4. Liver

Answer: 2. Large intestine

Question 29. Which organ performs the function of absorption of water and minerals?

1. Large intestine
2. Small intestine
3. Stomach
4. Rectum

Answer: 1. Large intestine

Question 30. The liver is the largest gland in the human body. What is the main function of the liver?

1. Secretion of bile
2. Digestion of proteins
3. Absorption of nutrients
4. Transportation of oxygen

Answer: 1. Secretion of bile

Question 31. The liver helps in the digestion of

1. Fats
2. Sugar
3. Protein
4. Minerals

Answer: 1. Fats

Question 32. The human digestive system is represented in the given. In the given, the organ that secretes bile is labelled

1. 5
2. 4
3. 3
4. 1

Answer: 1. 5

Question 33. The liver is situated on the right-hand side of the human body. It plays a major role in digestion by secreting enzymes. Liver secretes

1. Bile juice
2. Pancreatic juice
3. Insulin
4. Glycogen

Answer: 1. Bile juice

Question 34. The liver is a very important part of the body and its main function is the secretion of bile. Bile is a digestive fluid. Apart from bile, other secretions control a host of activities. Which of the following statements about the liver is false?

1. It aids digestion of lipids
2. It aids digestion of fats
3. It secretes insulin
4. It secretes bile

Answer: 3. It secretes insulin

Question 35. Which arrow diagram correctly represents the sequence of digestion?

1. Mouth →oesophagus→ large intestine → small intestine → stomach → rectum
2. Mouth → stomach →small intestine → large intestine → oesophagus → rectum
3. Mouth → oesophagus → stomach → small intestine → large intestine → rectum
4. Mouth→ oesophagus →rectum → large intestine → stomach → small intestine

Answer: 3. Mouth → oesophagus → stomach → small intestine → large intestine → rectum

Question 36. The process of enzymatic breakdown of food is known as

1. Absorption
2. Digestion
3. Excretion
4. Assimilation

Answer: 2. Digestion

Question 37. At the end of digestion, the carbohydrates are broken down into

1. Glucose
2. Glycerol
3. Fatty acids
4. Amino acids

Answer: 1. Glucose

Question 38. The inner lining of the stomach secretes various substances like mucous, hydrochloric acid and digestive juices. The digestive juices secreted by the stomach take part in the digestion of which of the following substances?

1. Starch
2. Proteins
3. Glucose
4. Vitamins

Answer: 2. Proteins

Question 39. During the process of digestion, fats are broken down into ____1_____ and ____2______. The information in which alternative completes the given statement?

1. 1- fatty acids 2- glycerol
2. 1- glycerol 2- amino acids
3. 1- amino acids 2-glucose
4. 1- glucose 2-fatty acids

Answer: 1. 1- fatty acids 2- glycerol

Question 40. Bile juice is secreted by the liver and is stored in the gall bladder. Bile juice is chiefly involved in the digestion of

1. Proteins
2. Carbohydrates
3. Fats
4. Glucose

Answer: 3. Fats

Question 41. Which of the following is absent in herbivores?

1. Incisors
2. Canines
3. Premolars
4. Molars

Answer: 2. Canines

Question 42. The molars and premolars in herbivores help in

1. Cutting
2. Biting
3. Chewing
4. Frinding

Answer: 3. Chewing

Question 43. Which of the following in carnivores, helps to grip the food and strip off small pieces of flesh?

1. Incisors
2. Canines
3. Premolars
4. Molars

Answer: 1. Incisors

Question 44. In humans, each tooth has

1. Root
2. Crown
3. Neck
4. All

Answer: 1. Root

Question 45. Internally, a tooth has

1. Enamel
2. Dentine
3. Pulp cavity
4. All

Answer: 4. All

Question 46. Which of the following should be taken to prevent plaque formation?

1. Sweets
2. Chocolates
3. Ice-creams
4. None

Answer: 4. None

Question 47. Which of the following are adopted for eating flesh, in a dog?

1. Incisors
2. Canines
3. Premolars
4. Molars

Answer: 2. Canines

Question 48. Which of the following parts of the tooth is projected above the jaw?

1. Root
2. Crown
3. Neck
4. None

Answer: 2. Crown

Digestion Summative Worksheet MCQs

Question 1. Which of the following helps in the digestion of food?

1. Nutrients
2. Hormones
3. Enzymes
4. Saliva

Answer: 3. Enzymes

Question 2. Saliva contains an enzyme called

1. Amylase
2. Trypsin
3. Pepsin
4. None of the above

Answer: 1. Amylase

Question 3. The teeth adapted for flash eating are

1. Incisors
2. Premolars
3. Canines
4. Molars

Answer: 3. Canines

Question 4. Finger-like projections called villi are present in

1. Stomach
2. Large intestine
3. Small intestine
4. Liver

Answer: 3. Small intestine

Question 5. Most of the digestion takes place in

1. Stomach
2. Small intestine
3. Large intestine
4. Rectum

Answer: 2. Small intestine

Question 6. Absorption of food takes place in

1. Small intestine
2. Pancreas
3. Large intestine
4. Liver

Answer: 2. Pancreas

Question 7. A tooth consists of the following parts:

1. Gum and crown
2. Root, crown and neck
3. Enamel and dentine
4. Only crown

Answer: 3. Enamel and dentine

Question 8. Absorption of water takes place in

1. Small intestine
2. Large intestine
3. Rectum
4. Large intestine and rectum

Answer: 2. Large intestine

Digestion Fill In The Blanks

Question 1. Saliva is secreted by the ____________ in the mouth cavity.
Answer: salivary glands

Question 2. Number of molar teeth present in a human adult is ________________.
Answer: 12

Question 3. The teeth which help in biting the food in humans are the ________________.
Answer: Incisors

Question 4. Food is digested by chemicals called ________________
Answer: Enzymes

Question 5. Changing food to a usable form is called ________________
Answer: Digestion

Question 6. The liver and ________________ are found near the stomach.
Answer: Spleen

Question 7. The five steps in the process of nutrition are ________________,
________________, ________________, ________________ and ________________.
Answer: Ingestion, Digestion, Absorption, Assimilation and Egestion

Question 8. The white part of the tooth is called the ________________
Answer: Enamel

Question 9. The part of the tooth embedded in the jaw is called the ________________
Answer: Root

Question 10. In the teeth of a rabbit, ________________ are absent.
Answer: Cannes

Digestion Write True Or False

Question 1. Canines are meant for tearing flesh.
Answer: True

Question 2. Molar teeth are present in a human baby.
Answer: False

Question 3. The mouth cavity is also known as the food pipe.
Answer: True

Question 4. Gastric juice is secreted by the small intestine.
Answer: False

Question 5. Food is mostly digested in the stomach.
Answer: False

Question 6. In humans, there are 14 teeth in each jaw
Answer: False

Movement In Animals And Plants Multiple Choice Question and Answers

Question 1. Which of the following is an act of locomotion?

1. Crawling
2. Running
3. Flying
4. Swimming
5. All

Answer: 5. All

Question 2. The locomotory organs in amoeba are

1. Cilia
2. Wings
3. Pseudopodia
4. Tentacles

Answer: 3. Pseudopodia

Question 3. The locomotion due to pseudopodia in amoeba is termed as

1. Ciliary
2. Flying
3. Amoeboid
4. Crawling

Answer: 3. Amoeboid

Question 4. Cilia are the locomotory organs in

1. Amoeba
2. Paramecium
3. Earthworm
4. Hydra

Answer: 2. Paramecium

Question 5. Which of the following statements about the body movements of earthworms is incorrect?

1. They move by extending the front portion of their bodies while keeping the rear portion fixed to the ground.
2. They move by extending the rear portion of their bodies while keeping the front portion fixed to the ground.
3. Their bodies secrete a slimy substance that helps them in movement.
4. Their body muscles help them in movement.

Answer: 2. They move by extending the rear portion of their bodies while keeping the front portion fixed to the ground.

Question 6. An earthworm takes five seconds each to extend the front part of its body, releasing the rear portion of its body, and pulling the rear forward by shortening its body. It covers a distance of 25 cm on completion of each round of these three steps. At what time will the earthworm cover a 1 m distance if it moves with uniform speed?

1. 0.5 minute
2. 1 minute
3. 1.5 minutes
4. 2 minutes

Answer: 2. 1 minute

Question 7. Which of the following statements about snails is incorrect?

1. They move at a very slow pace.
2. They move with the help of a thick muscular foot.
3. The outer shell of snails plays an important role in movement.
4. The head and foot of snails are out of the shell during locomotion.

Answer: 3. The outer shell of snails plays an important role in movement.

Question 8. Which of the following statements about cockroaches is incorrect?

1. They fly with the help of breast muscles attached to their wings.
2. They walk with the help of the muscles attached to their legs.
3. They have two pairs of wings.
4. They have four pairs of legs.

Answer: 4. They have four pairs of legs.

Question 9. Cockroaches have the ability to fly. Also, they can walk on the ground. Which of the following statements regarding movement in cockroaches is correct?

1. They fly in the air with the help of feathers.
2. They fly in the air with the help of wings.
3. They move with the help of a thick muscular foot.
4. They move by extending the front part of their body.

Answer: 2. They fly in the air with the help of wings.

Question 10. Which of the following statements about the body movement of fishes is correct?

1. Fins help fishes maintain the balance of their body while swimming.
2. Gills help fish maintain the balance of the body while swimming.
3. The streamlined body of fish helps them change directions while swimming.
4. The strong muscles attached to the skeleton of fishes help them change directions while swimming.

Answer: 1. Fins help fishes maintain the balance of their body while swimming.

Question 11. Fishes are aquatic animals. Which of the following adaptations present in a fish does not help in swimming?

1. Presence of a streamlined body
2. Presence of a pair of gills
3. Presence of a tail
4. Presence of fins

Answer: 2. Presence of a pair of gills.

Question 12. Fishes are aquatic organisms. Which feature in the body of fish helps them change directions while swimming?

1. Gills
2. Streamlined body
3. Fins
4. Strong muscles

Answer: 3. Fins

Question 13. Snakes are terrestrial organisms. Which of the following statements about the body movement of snakes is correct?

1. They move with the help of a thick muscular foot.
2. They move by continuously extending and shortening their body.
3. They move by folding their body into many loops, which gives a forward push to the body.
4. They move by moving the front portion of their body to one side while swinging their tail to the other side.

Answer: 3. They move by folding their body into many loops, which gives a forward push to the body.

Question 14. Column2 Column 2

The alternatives in the given table can be correctly matched as

1. 1→ 2, 2 → c, 3 → 1 4→ 4
2. 1 → 2, 2 → c, 3 → 4, 4 → 1
3. 1 → 3, 2→ b, 3 → a, 4 → 4
4. 1 →3, 2 → b, 3 → 1, 4 → 1

Answer: 4. 1 →3, 2 → b, 3 → 1, 4 → 1

Question 15. What is the long, hard structure that starts from the neck to the lower back of the body known as?

1. Backbone
2. Cartilage
3. Pelvic bone
4. Shoulder bone

Answer: 1. Backbone

Question 16. The skeletal system provides shape and rigidity to the body. It also helps in protecting a number of internal organs. Which of the following internal organs is not protected by the ribcage?

1. Heart
2. Liver
3. Lungs
4. Stomach

Answer: 4. Stomach

Question 17. The given diagram illustrates a part of the human skeletal system. Which of the following functions is performed by the illustrated image?

1. Breathing
2. Holding
3. Running
4. Sitting

Answer: 2. Holding

Question 18. Which of the following statements about constituents of the rib cage is correct?

1. The rib cage consists of chest bones only.
2. The rib cage protects the stomach, lungs, and heart.
3. The vertebral column alone comprises the rib cage.
4. Twelve ribs and a backbone constitute the rib cage.

Answer: 4. Twelve ribs and a backbone constitute the rib cage.

Question 19. The given represents the human skeletal system. In the given, label X represents the

1. Skull
2. Rib cage
3. Shoulder bones
4. Pelvic bones

Answer: 4. Pelvic bones

Question 20. The given represents the human skeletal system. In the given, the shoulder bones are labeled as

1. 1
2. 2
3. 3
4. 4

Answer: 4. 4

Question 21. The given represents the human skeletal system. In the given, label X represents the

1. Skull
2. Rib cage
3. Shoulder bones
4. Pelvic bones

Answer: 1. Skull

Question 22. The given diagram illustrates the human skeleton. The structure labeled I in the given diagram illustrates the

1. Ribs
2. Skull
3. Backbone
4. Pelvic bones

Answer: 2. Skull

Question 23. The given diagram illustrates the human skeleton. Pelvic bones in the given diagram are labeled as

1. 1
2. 2
3. 3
4. 4

Answer: 4. 4

Question 24.

1. 1 → 1, 2 → 2, 3 → 3
2. 1 → 2, 2 → 1, 3 → 2
3. 1→ 2, 2 →3, 3→ 1
4. 1→ 3, 2 →1, 2 → 2

Answer: 2. 1 → 2, 2 → 1, 3 → 2

Question 25. Which joint is present between the upper jaw and the rest of the head?

1. Fixed joint
2. Hinge joint
3. Pivotal joint
4. Ball and socket joint

Answer: 1. Fixed joint

Question 26. Which type of joint is present in the bones of the head region and upper jaw?

1. Ball and socket joint
2. Pivotal joint
3. Hinge joint
4. Fixed joint

Answer: 4. Fixed joint

Question 27. Joints are present between bones in the human body. There are different types of joints such as ball and socket joints, hinge joints, pivot joints, and gliding joints. The ball and socket joint is capable of movement in infinite directions. The ball and socket joint is present in the

1. Shoulder
2. Elbow
3. Neck
4. Skull

Answer: 1. Shoulder

Question 28. Joints are the meeting points of two or more bones. Which joint allows movements in all directions?

1. Pivotal joint
2. Ball and socket joint
3. Hinge joint
4. Fixed joint

Answer: 2. Ball and socket joint

Question 29. ___1_____is a movable joint that allows the bone to move in all the directions. An example of such a joint is___1_____. The information in which alternative completes the given statement?

1. 1 – Hinge, 2 – elbow
2. 1 – Ball and socket, 2 – elbow
3. 1 – Hinge, 2 – shoulder
4. 1 – Ball and socket, 2 – shoulder

Answer: 4. 1 – Ball and socket, 2 – shoulder

Question 30. Joints are the meeting points of two or more bones. Which joint allows the back-and-forth movement of the elbow?

1. Ball and socket joint
2. Pivotal joint
3. Fixed joint
4. Hinge joint

Answer: 4. Hinge joint

Question 31. The given diagram illustrates the knee region in the human skeleton system. Which type of joint is present in the knee region?

1. Ball and socket joint
2. Pivotal joint
3. Hinge joint
4. Fixed joint

Answer: 3. Hinge joint

Question 32. The ___1___ joint allows no movement of bones, while the ____2___ joint allows back-and-forth movement of bones. The information in which alternative completes the given statement?

1. 1 – hinge, 2 – fixed
2. 1 – fixed, 2 – hinge
3. 1– fixed, 2 – ball and socket
4. 1 – hinge, 2 – ball and socket.

Answer: 2. 1 – fixed, 2 – hinge

Question 33. The elbow joint is an example of a hinge joint. What kind of movement is possible by a hinge joint?

1. One-dimensional
2. Two-dimensional
3. Three-dimensional
4. Four-dimensional

Answer: 2. Four-dimensional

Question 34. A student, while studying about different types of joints, wrote the following description about a particular joint X. “The joint allows movement only in four directions (up, down, back, and forth) similar to a rod rotating in a ring”. Joint X represents

1. Ball and socket joint
2. Pivotal joint
3. Fixed joint
4. Hinge joint

Answer: 2. Pivotal joint

Question 35. Which of the following statements about pivotal joints is correct?

1. It is present in the elbow region.
2. It is present in the bones of the skull.
3. It allows movements in all directions.
4. It allows the forward and backward movements of the head.

Answer: 4. It allows the forward and backward movements of the head.

Question 36. The alternatives in the given table can be correctly matched as

1. 1 → 1, 2 → 3, 3 → 2, 4 → 4
2. 1 → 2, 2 → 1, 3→ 4, 4 → 3
3. 1 → 3, 2 → 1, 3 → 2, 4 →4
4. 1 → 4, 2 → 3, 3 →4, 4 →3

Answer: 3. 1 → 3, 2 → 1, 3 → 2, 4 →4

Question 37. Knee and ___1___ joints are __ 2___ joints, whereas __3____ joint is a __ 4___ joint. The above statement is completed by the information provided in which row?

1. 1 – elbow, 2 – hinge, 3 – hip, 4 – ball and socket
2. 1 – hip, 2 – hinge,3 – elbow, 4– ball and socket
3. 1 – elbow, 2 – pivot, 3– hip, 4 – hinge
4. 1– hip, 2 – hinge, 3– elbow, 4 – pivot

Answer: 1. 1 – elbow, 2 – hinge, 3 – hip, 4 – ball and socket

Question 38. The given graph signifies the number of directions in which joints P, Q, R, and S can move. Which of the following statements regarding the four joints is not correct?

1. The movement allowed by S is unidirectional.
2. Bone rotates in a ring in joint Q.
3. Joint P is present in the skull.
4. R represents a hinge joint

Answer: 1. Movement allowed by S is unidirectional.

Question 39. Humans perform a variety of activities, like running, walking, playing, lifting weights, etc. They are able to do so because of organ system X. The organ system X referred to in the preamble is the

1. Muscular system
2. Digestive system
3. Excretory system
4. Circulatory system

Answer: 1. Muscular system

Question 40. Which of the following statements about muscles is incorrect?

1. They contract to move a bone in a particular direction.
2. They contract to bring a bone to its original position.
3. They can only push the bone.
4. They can only pull the bone.

Answer: 3. They can only push the bone.

Question 41. The given illustrates two arm muscles X and Y at two positions 1 and 2. During the transition from 1 to 2,

1. Only the relaxation of muscle Y takes place
2. Only the contraction of muscle X takes place
3. Relaxation of both muscles X and Y takes place
4. Contraction of both muscles X and Y takes place

Answer: 1. Only the relaxation of muscle Y takes place

Question 42. Muscles are necessary for the movement of bones. Which of the following statements is correct regarding the contraction of muscles?

1. Bones can move in the absence of muscles.
2. Muscles become longer and thinner on contraction.
3. Muscles become shorter and thicker on contraction.
4. Bones can move in the presence of only one muscle.

Answer: 3. Muscles become shorter and thicker on contraction.

Question 43. A student is provided with the information regarding the number of joints and type of joints present in two organs X and Y. Which of the following questions would the student not be able to answer with the help of the given information?

1. What is the function of X and Y?
2. Which organ has greater flexibility?
3. Which organ has greater contractibility?
4. What is the direction of movement allowed in X and Y?

Answer: 3. Which organ has greater contractibility?

Question 44. In animals, movements occur because of the changes occurring in the proteins present in the muscle cells. In plants, movements occur because of the

1. Changes in the shape of the cell
2. Changes in the organelles of the cell
3. Re-arrangement of the proteins present in the cell
4. Re-arrangement of the carbohydrates present in the cell

Answer: 1. Changes in the shape of the cell

Question 45. During the process of seed germination, it is observed that seedlings grow towards the source of light. The phenomenon exhibited by seedlings is known as

1. Gravitropism
2. Phototropism
3. Chemotropism
4. Thermotropism

Answer: 2. Phototropism

Question 46. Which of the following plants show movements with flagella?

1. Chlamydomonas
2. Volvox
3. Spirogyra
4. Mosses

Answer: 1. Chlamydomonas

Question 47. Statement 1: Shoots show positive phototropism. Statement 2: Roots show negative phototropism.

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 3. Both statements are true.

Question 48. The movement in response to gravity is called

1. Phototropism
2. Geotropism
3. Hydrotropism
4. Thigmotropism

Answer: 1. Phototropism

Question 49. The movement of plant parts in response to water is termed as

1. Phototropism
2. Geotropism
3. Hydrotropism
4. Thigmotropism

Answer: 3. Hydrotropism

Question 50. The Mimosa pudica or the touch-me-not plant is a sensitive plant that when touched responds by folding up its leaves. This is an example of growth independent movement. Which event leads to the folding up of leaves in the plant?

1. Movement of water into the cell
2. Movement of water out of the cell
3. Movement of chemicals into the cell
4. Movement of chemicals out of the cell

Answer: 2. Movement of water out of the cell

Question 51. When Swati touched the leaves of the plant called chi-mui (touch-me-not), she noticed that the leaves started to fold up and droop. The given phenomenon is observed because of the

1. Response of the plant’s nervous system to touch
2. Response of the plant’s nervous system to touch
3. Changes in the shape of the plant cells because of the movement of water
4. Changes in the structural proteins produced by the plant’s specialized cells

Answer: 3. Changes in the shape of the plant cells because of the movement of water

Question 52. The movement shown by the leaves of touch-me-not on being touched is known as ___1_____. _____2_____ involves the bending of shoots towards a source of light. The information in which alternative completes the given statements?

1. 1 – growth-independent movement; 2 – Growth-dependent movement
2. 1 – growth-dependent movement; 2 – Growth-independent movement
3. 1 – growth-independent movement; 2 – Growth-independent movement also
4. 1 – growth-dependent movement; 2 – Growth-dependent movement also

Answer: 1. 1 – growth-independent movement; 2 – Growth-dependent movement

Movement In Animals And Plants Conceptive Worksheet

Question 1. The act of moving from one place to another is called

1. Locomotion
2. Transpiration
3. Diffusion
4. Effusion

Answer: 1. Locomotion

Question 2. Animals need locomotion

1. To search for food
2. To escape from enemies and predators.
3. To move to a favorable environment.
4. All the above

Answer: 4. All the above

Question 3. Tentacles are the locomotory organs in

1. Amoeba
2. Paramecium
3. Earthworm
4. Hydra

Answer: 4. Hydra

Question 4. Locomotion in Hydra is caused by

1. Looping movement
2. Somersault movement
3. Both
4. None

Answer: 3. Both

Question 5. Which of the following statements regarding movement in earthworms is correct?

1. It moves with the help of a thick muscular foot.
2. It moves with the help of distinct muscles attached to the legs.
3. It moves by fixing its rear portion to the soil and extending its front part.
4. It moves by curving its body into many loops which pushes the body forward.

Answer: 3. It moves by fixing its rear portion to the soil and extending its front part.

Question 6. Which of the following statements about earthworms is correct?

1. They move with the help of a muscular foot.
2. They move with the help of muscles attached to their bones.
3. They move with the help of muscles that help to extend and shorten their bodies.
4. They move with the help of muscles that help in folding their bodies into several loops.

Answer: 3. They move with the help of muscles that help to extend and shorten their bodies.

Question 7. Which of the following statements about the body movements of snails is correct?

1. They move with the help of a thick foot that has strong muscles.
2. They move with the help of muscles that extend and shorten their bodies.
3. They move by folding their bodies into several loops, which gives them a push to move forward.
4. They move by moving their bodies to one side while swinging their tails to the other side.

Answer: 1. They move with the help of a thick foot that has strong muscles.

Question 8. Which of the following statements about the body movements of cockroaches is correct?

1. They move with the help of a thick muscular foot.
2. They have streamlined bodies, which helps them swim.
3. They have hollow and light bones, which helps them fly.
4. They walk with the help of the muscles attached to their legs.

Answer: 4. They walk with the help of the muscles attached to their legs.

Question 9. Which of the following features does not help a duck in flying?

1. Presence of wings
2. Presence of webbed feet
3. Presence of hollow and light bones
4. Presence of strong shoulder bones

Answer: 2. Presence of webbed feet

Question 10. Fishes are aquatic animals that live underwater. Which of the following features is absent from fishes?

1. Fins
2. Tail
3. Muscular foot
4. Streamlined body

Answer: 3. Muscular foot

Question 11. Fishes are aquatic animals, well adapted to live underwater. Which feature of a fish’s body helps it to keep balance and change direction while swimming?

1. Presence of strong muscles
2. Presence of slippery scales
3. Presence of gills
4. Presence of fins

Answer: 4. Presence of fins

Question 12. ___1____move with the help of a thick muscular foot. ___2____ move by curving their body into many loops where each loop gives a forward push to the body. The information in which alternative completes the given statements?

1. 1 – Snakes; 2 – Cockroaches
2. 1 – Cockroaches; 2 – Fishes
3. 1 – Fishes; 2 – Snails
4. 1 – Snails; 2 – Snakes

Answer: 4. 1 – Snails; 2 – Snakes

Question 13. The given represents a part of the human skeletal system. Which structure is shown in the given?

1. Rib cage
2. Skull
3. Backbone
4. Pelvic bone

Answer: 3. Backbone

Question 14. The given represents a part of the human skeletal system. The given represents the

1. Bones of the hand
2. Bones of the feet
3. Rib cage
4. Backbone

Answer: 1. Bones of the hand

Question 15. The illustrated structure belongs to the

1. Skeletal system
2. Nervous system
3. Muscular system
4. Circulatory system

Answer: 1. Skeletal system

Question 16. The given represents the human skeletal system. In the given, label X represents the

1. Pelvic bones
2. Skull
3. Rib cage
4. Shoulder bones

Answer: 4. Shoulder bones

Question 17. The rib cage is a part of the skeletal system. It performs the function of protecting the

1. Heart and the lungs
2. Kidney and the lungs
3. Heart and the stomach
4. Kidney and the stomach

Answer: 1. Heart and the lungs

Question 18. The given represents the human skeletal system. In the given, the pelvic bones are labeled as

1. 1
2. 2
3. 3
4. 4

Answer: 2. 2

Question 19. The given diagram illustrates the human skeleton. Which labeled structure helps in protecting the brain?

1. 1
2. 2
3. 3
4. 4

Answer: 1. 1

Question 20. The given diagram illustrates the human skeleton. Label I in the given diagram depicts the

1. Ribs
2. Skull
3. Backbone
4. Pelvic bones

Answer: 1. Ribs

Question 21. The given represents the human skeletal system. In the given, label X represents the

1. Rib cage
2. Skull
3. Shoulder bones
4. Pelvic bones

Answer: 1. Rib cage

Question 22. Which of the following statements about fixed joints is correct?

1. It is present in the elbow region.
2. It is present in the bones of the skull.
3. It allows the movement of arms in all directions.
4. It allows the back-and-forth movement of the head.

Answer: 2. It is present in the bones of the skull.

Question 23. Which joint does not allow the movement of bones?

1. Fixed joint
2. Hinge joint
3. Ball and socket joint
4. Pivotal joint

Answer: 1. Fixed joint

Question 24. A joint is a place in the body where two or more bones meet. From the following, which joint allows free movement in all directions?

1. Ball and socket joint
2. Pivotal joint
3. Hinge joint
4. Fixed joint

Answer: 1. Ball and socket joint

Question 25. Joints are the meeting points of two or more bones. Which of the following statements about ball and socket joints is correct?

1. It is present in the bones of the elbow region.
2. It allows movements in all directions.
3. It is present in the bones of the skull.
4. It allows restricted movement.

Answer: 2. It allows movements in all directions.

Question 26. Ball and socket joint is present in

1. backbone
2. shoulder
3. ribs
4. skull

Answer: 2. shoulder

Question 27. The given illustrates part 1,2,3,4 of the skeletal system in humans. Which of the following labels represents a hinge joint?

1. 1
2. 2
3. 3
4. 4

Answer: 4. 4

Question 28. The joints of the knee allow movement only in a back-and-forth direction. The type of joint present in the knee region is known as

1. Ball and socket joint
2. Pivotal joint
3. Hinge joint
4. Fixed joint

Answer: 3. Hinge joint

Question 29. Joints are the meeting points of two or more bones. Which of the following statements about the hinge joint is correct?

1. It is present in the elbow region.
2. It is present in the bones of the skull.
3. It allows the movement of arms in all directions.
4. It allows the back-and-forth movement of the head.

Answer: 1. It is present in the elbow region.

Question 30. Which of the following statements is correct for hinge joints?

1. It is a type of fixed joint.
2. It can move in all directions.
3. It allows movement on the right or left only.
4. It allows only back-and-forth movement.

Answer: 4. It allows movement in right or left only.

Question 31. The pivotal joint is present between the

1. Head and neck region
2. Shoulder and upper arm
3. Bones of the elbow region
4. Bones of the head and upper jaw

Answer: 1. Head and neck region

Question 32. Which joint allows the movement of the head in the forward and backward directions?

1. Ball and socket joint
2. Pivotal joint
3. Hinge joint
4. Fixed joint

Answer: 2. Pivotal joint

Question 33. Sally likes to play tennis. She can move easily while playing tennis because the joints present in the human body give her the flexibility to move. Which joint is present in the wrist?

1. Pivot joint
2. Hinge joint
3. Gliding joint
4. Ball and socket joint

Answer: 3. Gliding joint

Question 34. The locomotory organs in Euglena are

1. Flagella
2. Wings
3. Pseudopodia
4. Tentacles

Answer: 1. Flagella

Question 35. Bones give shape and structure to the body and help in the different body movements. The bones perform this function with the help of the

1. Muscles
2. Kidney
3. Lugs
4. Heart

Answer: 1. Muscles

Question 36. The muscular system helps the body in movement. In conducting the movements of the body, the muscular system is supported by the

1. Skeletal system
2. Digestive system
3. Excretory system
4. Circulatory system

Answer: 1. Skeletal system

Question 37. Muscles help in the movement of bones. Which of the following statements about muscles is correct?

1. They contract to become short and thick to push the bone.
2. They relax to become long and thin to push the bone.
3. They work independently to move a bone.
4. They work in pairs to move a bone.

Answer: 4. They work in pairs to move a bone.

Question 38. In which of the following plants, movement by cilia is observed?

1. Moss
2. Fern
3. Chlamydomonas
4. Volvox

Answer: 1. Moss

Question 39. The movement of plants toward light is called

1. Phototropism
2. Geotropism
3. Hydrotropism
4. Thigmotropism

Answer: 1. Phototropism

Question 40. Statement 1: Roots are positively geotropic. Statement 2: Show is negatively geotropic.

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 3. Both statements are true.

Question 41. Roots are usually

1. Positively geotropic
2. Negative phototropic
3. Positively hydrotropic
4. All

Answer: 4. All

Question 42. Which of the following statements is correct about growth-independent movements?

1. This type of movement is apparent.
2. This type of movement is dependent on phytohormones.
3. This type of movement is shown by the tendrils of the pea plant.
4. This type of movement is independent of the direction of the stimulus.

Answer: 4. This type of movement is independent of the direction of the stimulus.

Movement In Animals And Plants Summative Worksheet MCQs

Question 1. Cilia are used for locomotion in case of

1. Amoeba
2. Euglena
3. Paramecium
4. Hydra

Answer: 4. Hydra

Question 2. Earthworm moves by means of

1. Flagella
2. Circular and longitudinal muscles
3. Fins
4. Hind limbs

Answer: 2. Circular and longitudinal muscles

Question 3. Muscles are attached to the bones by

1. Tendons
2. Cartilages
3. Ligaments
4. None of the above

Answer: 1. Tendons

Question 4. The synovial cavity is found in

1. Immovable joints
2. Freely movable joints
3. Slightly movable joints
4. Muscles

Answer: 2. Freely movable joints

Question 5. The joint which allows movement in one direction only is a

1. Hinge joint
2. Pivot joint
3. Ball and socket joint
4. Slightly movable joint

Answer: 1. Hinge joint

Question 6. In tropic movement, plant parts move

1. Away from the stimulus
2. Towards the stimulus
3. Either towards or away from the stimulus
4. Only towards soil

Answer: 3. Either towards or away from the stimulus

Movement In Animals And Plants Fill In The Blanks

Question 1. A joint occurs where two _____________ meet.
Answer: Bones

Question 2. When a muscle _____________ thickens.
Answer: Contracts

Question 3. When a muscle _____________ original shape.
Answer: Relaxes

Question 4. Joints in the bones of the skull are of _____________ type.
Answer: Immovable Joints

Question 5. In a positive response, the movement is _____________ the stimulus.
Answer: Towards

Question 6. Movement in response to touch is called _____________.
Answer: Thigmotropism

Name the structures associated with locomotion in the following organisms

1. Amoeba – pseudopodia
2. Paramecium – cilia
3. Euglena – flagellum
4. Hydra – tentacles
5. Fish – fins and tail
6. Reptiles – scales
7. Birds – wings
8. Frog – hind limbs with webbed feet

Name the joints found in/between

1. Teeth and gum – bony socket
2. Finger – Hinge
3. Skull – Fixed
4. Knee – Hinge
5. Shoulder-ball and socket

Respiration And Excretion Formative Worksheet

Question 1. Cellular respiration is a process in which food is broken down in a cell and converted into energy. Respiration is an example of

1. A catabolic process
2. Transportation of ions
3. Anabolic process
4. Excretion of ions

Answer: 1. A catabolic process

Question 2. Which of the following statements about cellular respiration is correct?

1. Oxygen is released during cellular respiration.
2. Cellular respiration leads to the formation of starch.
3. Cellular respiration leads to the formation of glucose.
4. Carbon dioxide is released during cellular respiration.

Answer: 4. Carbon dioxide is released during cellular respiration.

Question 3. The given equation represents respiration. Sugar + O2 → CO2 + X + Energy In the given equation, X represents

1. Water
2. Lipids
3. Proteins
4. Vitamins

Answer: 1. Water

Question 4. During respiration, _____1_____ and _____2_____ are utilized to produce energy, CO2, and H2O. Which alternative completes the given statement?

1. 1- glucose 2- oxygen
2. 1- oxygen 2- carbon monoxide
3. 1- carbon monoxide 2- sulfur dioxide
4. 1- sulfur dioxide 2-glucose

Answer: 1. 1- glucose 2- oxygen

Question 5. Aerobic respiration is a type of cellular respiration that takes place in the presence of oxygen. Which of the following substances is not produced during aerobic respiration?

1. Water
2. Energy
3. Carbon dioxide
4. Lactic acid

Answer: 4. Lactic acid

Question 6. Which of the following statements regarding the process of anaerobic respiration is correct?

1. It involves the breakdown of alcohol.
2. It occurs in the presence of oxygen.
3. It involves the production of water.
4. It releases carbon dioxide.

Answer: 4. It releases carbon dioxide.

Question 7. Yeast is commercially used for the preparation of alcohol and ____1____ by the process of _____2______. The information in which alternative completes the given statement?

1. 1-wine 2- fermentation
2. 1-antibiotics 2-fermentation
3. 1-wine 2-aerobic respiration
4. 1-antibiotics 2-aerobic respiration

Answer: 1. 1-wine 2- fermentation

Question 8. The given equation illustrates the breakdown of glucose in a yeast cell. Glucose Carbon dioxide + Energy The information in which alternative completes the given equation?

1. 1- Absence of oxygen 2- Alcohol
2. 1- Absence of oxygen 2-Water
3. 1- Presence of oxygen 2-Alcohol
4. 1- Presence of oxygen 2-Water

Answer: 1.1- Absence of oxygen 2- Alcohol

Question 9. The alternatives in the given table can be correctly matched as Column 1 and Column 2

1. 1 → 2, 2 → 3, 3 →1
2. 1 → 3, 2 → 2, 3→ 1
3. 1 → 1, 2→ 2, 3→ 3
4. 1 →2, 2 →3, 3 →2

Answer: 1. 1 →2, 2 → 3, 3 → 1

Question 10. Which of the following statements is correct regarding respiration in plants?

1. Respiration stops when photosynthesis occurs.
2. Roots are underground, hence do not respire.
3. Respiration in plants occurs by diffusion.
4. Germinating seeds do not respire.

Answer: 3. Respiration in plants occurs by diffusion.

Question 11. The ____1____ present on the ___ 2___ of plants help in the exchange of gases. The information in which alternative completes the given statement?

1. 1-stomata 2-leaves
2. 1-stomata 2-roots
3. 1-xylem 2-leaves
4. 1-xylem 2-roots

Answer: 1. 1-stomata 2-leaves

Question 12. Breathing is the process of intake of oxygen-rich air and giving out carbon dioxide-rich air. The process of taking in oxygen-rich air is known as

1. Exhalation
2. Inhalation
3. Ingestion
4. Egestion

Answer: 2. Inhalation

Question 14. The process of releasing carbon dioxide-rich air from the body is known as

1. Exhalation
2. Inhalation
3. Ingestion
4. Egestion

Answer: 1. Exhalation

Question 15. During a process X, the ribs of a person are moving out and its diaphragm is moving down towards the abdomen. According to the given information, process X

1. Can only be inhalation
2. Can only be exhalation
3. Signifies holding of breath
4. This signifies breathing on a whole

Answer: 2. Can only be an exhalation

Question 14. During the process of exhalation, ribs move ____1_____, while the diaphragm moves ____2_____. The information in which alternative completes the given statement?

1. 1-outward 2-downward
2. 1-downward 2-upward
3. 1-upward 2-inward
4. 1-inward 2-outward

Answer: 1. 1-outward 2-downward

Question 17. The given table illustrates the speed of running of a person at different times. Minute Speed of running (m/s)

At 4th minute,

1. Only the rate of inhalation increases
2. Only the rate of inhalation decreases
3. The rates of both inhalation and exhalation increase
4. The rates of both inhalation and exhalation decrease

Question 18. The given illustration represents the human excretory system. In the given illustration, the structure labeled X represents

1. Kidney
2. Ureter
3. Urinary bladder
4. Urethra

Answer: 3. Urinary bladder

Question 19. What is the primary excretory product of humans?

1. Ammonia
2. Urea
3. Glucose
4. Starch

Answer: 2. Urea

Question 20. What is the primary function of the ureter?

1. Storing urine
2. Producing urine
3. Passing urine out of the body
4. Transporting urine from the kidneys to the urinary bladder

Answer: 4. Transporting urine from the kidneys to the urinary bladder

Question 21. Kidneys filter waste material from the blood and remove them from the body. Blood is supplied to the kidneys by the circulatory system. Blood is supplied to the kidneys by the

1. Renal vein
2. Renal artery
3. Pulmonary vein
4. Pulmonary artery

Answer: 2. Renal artery

Question 22. Urea, uric acid, and ammonia are the chief excretory products of a large number of animals. Which of the following animals excretes wastes in the form of urea?

1. Sparrow
2. Humans
3. Lizard
4. Snake

Answer: 2. Humans

Question 23. The given diagram represents the structure of the human excretory system Which of following functions is not performed by the kidneys?

1. Formation of urine
2. Oxygenation of blood
3. Reabsorption of water
4. Maintenance of salt balance

Answer: 2. Oxygenation of blood

Question 24. On average, a person excretes about 1.2 L of urine in 24 hours. What would be the approximate amount of urea excreted by the person at the same time?

1. 10 gm
2. 30 gm
3. 60 gm
4. 80 gm

Answer: 2. 30 gm

Question 25. Dialysis is the artificial process of regulation of fluids and mineral concentration in the human body. Which organ is replaced through dialysis?

1. Lung
2. Heart
3. Kidney
4. Liver

Answer: 3. Kidney

Question 26. The alternatives in the given table can be correctly matched as Column 1 Column 2

1. 1 →1, 2 → 2, 3 →3, 4 → 4
2. 1→ 1 2 →2, 3 →4, 4 → 3
3. 1 →3, 2→ 4, 3 →1, 4→2
4. 1 → 3, 2 → 2, 3 → 4, 4 → 1

Answer: 3. 1 → 3, 2→ 4, 3 → 1, 4→ 2

Question 27. Excretory system performs the functions of formation, storage, and removal of urine. What is the primary function of the urethra?

1. Storing urine
2. Producing urine
3. Passing urine out of the body
4. Transporting urine from the kidneys to the urinary bladder

Answer: 3. Passing urine out of the body

Question 28. The basic functional unit of the kidney regulates the concentration of water and soluble substances in the body. It functions by filtering blood under pressure. It then reabsorbs the necessary fluids and excretes the waste products. The above function is performed by

1. Renal artery
2. Nephron
3. Aorta
4. Renal vein

Answer: 2. Nephron

Question 29. Which of the following functions is not performed by kidneys?

1. Removal of body toxins
2. Supplying oxygen to the body
3. Maintaining body salt balance
4. Filtering of wastes from the blood

Answer: 4. Filtering of wastes from the blood

Question 30. Which of the following functions is not performed by kidneys?

1. Removal of body toxins
2. Supplying oxygen to the body
3. Maintaining body salt balance
4. Filtering of wastes from the blood

Answer: 4. Filtering of wastes from the blood

Question 31. Urine is stored in the urinary bladder before it is excreted. The urinary bladder can expand and contract depending on the amount of urine present in it. Which system allows the expansion and contraction of the urinary bladder?

1. Vascular system
2. Excretory system
3. Nervous system
4. Muscular system

Answer: 4. Muscular system

Question 32. Urine is a waste product formed inside the kidneys after the filtration of blood. Which of the following substances is not reabsorbed in the nephron from the urine formed inside it?

1. Salts
2. Glucose
3. Uric acid
4. Amino acids

Answer: 3. Uric acid

Question 33. _____1_____ and _____2_____ are examples of animals that excrete nitrogenous wastes in the form of uric acid. The information in which alternative completes the given statement?

1. 1- Birds 2- lizards
2. 1- Lizards 2-fishes
3. 1-fishes 2-humans
4. 1-humans 2-birds

Answer: 1. 1- Birds 2- lizards

Question 34. Animals inhabit many environments. Aquatic animals have specialized excretory organs well adapted to help them survive in water. Which of the following characteristics is true for fish?

1. Excretion of concentrated urine
2. Excretion of dilute urine
3. Absence of excretory organs
4. Absence of respiratory organs

Answer: 2. Excretion of dilute urine

Respiration And Excretion Conceptive Worksheet

Question 1. Cellular respiration is the process wherein

1. Food is synthesized in the cell to provide energy
2. Food is broken down in the cell to release energy
3. Carbon dioxide is exhaled
4. Oxygen is inhaled

Answer: 3. Food is synthesized in the cell to provide energy

Question 2. Cellular respiration is the process by which cells generate energy molecules. What is not produced during cellular respiration?

1. Carbon dioxide
2. Water molecules
3. Glucose molecules
4. ATP molecules

Answer: 1. Carbon dioxide

Question 3. The given equation represents cellular respiration. Sugar + X → CO2 + Water+ Energy In the given equation, X represents

1. Oxygen
2. Sunlight
3. Nitrous oxide
4. Sulfur dioxide

Answer: 4. Sulfur dioxide

Question 4. Cellular respiration takes place inside the cells of all living organisms. Which of the following events does not occur during cellular respiration?

1. Formation of carbon dioxide
2. Breakdown of glucose
3. Release of energy
4. Release of oxygen

Answer: 3. Release of energy

Question 5. Cellular respiration is of two types- aerobic and anaerobic. Which of the following statements regarding aerobic respiration is incorrect?

1. It involves the breakdown of glucose.
2. It does not involve the production of alcohol.
3. It does not require oxygen to carry out the reaction.
4. It releases carbon dioxide as a by-product of the reaction.

Answer: 2. It does not involve the production of alcohol.

Question 6. Anaerobes are organisms that respire through anaerobic respiration. Which of the following organisms is an anaerobe?

1. Fish
2. Yeast
3. Cockroach
4. Earthworm

Answer: 2. Yeast

Question 7. Yeast is used in the commercial production of 1 and 2. The information in Which alternative completes the given statement?

1. 1- vinegar 2-alcohol
2. 1-alcohol 2-oil
3. 1-oil 2-glucose
4. 1-glucose 2-vinegar

Answer: 1. 1- vinegar 2-alcohol

Question 8. During strenuous exercises, lactic acid is produced in our muscles because

1. O2 supply < O2 demand
2. O2 supply > O2 demand
3. O2 supply is in accordance with O2 demand
4. O2 supply is completely restricted in muscles

Answer: 3. O2 supply is in accordance with O2 demand

Ayush set up the given experiment to study the production of alcohol by yeast. He
added some

Question 9. Yeast to a test tube (tube A) containing fruit juice. He covered the tube with a piece of cork and connected the test tube to another test tube (tube B) containing some lime water with a delivery tube. The whole setup was maintained airtight. After some time, he noticed that the lime water in tube B had turned milky. Which of the following gases was produced by yeast which is responsible for the given observation?

1. Oxygen
2. Nitrogen
3. Carbon dioxide
4. Carbon monoxide

Answer: 3. Carbon dioxide

Question 9. Which process uses carbon dioxide and produces oxygen as a waste product?

1. Transpiration
2. Respiration
3. Photosynthesis
4. Osmosis

Answer: 3. Photosynthesis

Question 10. In plants, gaseous exchange occurs through

1. Xylem
2. phloem
3. stomata
4. chloroplast

Answer: 3. stomata

Question 11. Which of the following activities is a significant function of the nasal cavity?

1. Cleaning the inhaled air
2. Cleaning the exhaled air
3. Initiating the process of inhalation
4. Initiating the process of exhalation

Answer: 1. Cleaning the inhaled air

Question 12. Which of the following events does not take place during inhalation?

1. Upward and outward movement of ribs
2. Downward movement of the diaphragm
3. Decrease in the size of the chest cavity
4. Movement of air into the lungs

Answer: 3. Decrease in the size of chest cavity

Question 13. Which illustration represents the process of inhalation?

Answer: 1.

Question 14. Shalini took some freshly prepared lime water in a test tube and with the help of a plastic straw, blew some air into the test tube. Which statement correctly states the observation made in the given experiment?

1. The lime water will turn milky indicating the presence of carbon dioxide
   in exhaled air.
2. The lime water will turn milky indicating the presence of oxygen in
   exhaled air.
3. The lime water will remain unchanged indicating the presence of carbon
   dioxide in
4. exhaled air.
5. The lime water will remain unchanged indicating the presence of oxygen in
   exhaled air.

Answer: 1. The lime water will turn milky indicating the presence of carbon dioxide in exhaled air.

Question 15. The given illustration represents the human excretory system. In the given illustration, the structure labeled X represents

1. Kidney
2. Ureter
3. Bladder
4. Urethra

Answer: 2. Ureter

Question 16. Body cells produce a large number of waste products that enter the blood. These waste products need to be removed from the body for the proper functioning of cells. The organ that filters waste from blood is the

1. Brain
2. Heart
3. Kidney
4. Stomach

Answer: 3. Kidney

Question 17. Which of the following functions is not performed by kidneys?

1. Removal of body toxins
2. Supplying oxygen to the body
3. Maintaining body salt balance
4. Filtering of wastes from the blood

Answer: 4. Filtering of wastes from the blood

Question 18. The human excretory system is made up of kidneys, ureters, urinary bladder, and urethra. The structure that helps in the storage of urine is

1. Kidney
2. Ureter
3. Bladder
4. Urethra

Answer: 3. Bladder

Question 19. The kidneys are present in most vertebrate animals. The kidneys are important because they

1. Remove body waste
2. Digest food material
3. Pump blood to all body parts
4. Control different body movements

Answer: 1. Remove body waste

Question 20. Dialysis is the artificial process of regulation of fluids and mineral concentration in the human body. Which organ is replaced through dialysis?

1. Lung
2. Heart
3. Kidney
4. Liver

Answer: 3. Kidney

Question 21. The lungs end in alveoli, which are sac-like structures. The alveoli surface allows the exchange of respiratory gases between the blood cells and air. This helps in the purification of blood. Kidneys also play a role in this process. The basic unit of the kidney, where blood gets filtered, is called

 

1. Ureter
2. Neuron
3. Urethra
4. Nephron

Answer: 4. Nephron

Question 22. Excretory organs help the body in getting rid of waste products. Which of the following organs is not an excretory organ?

1. Urethra
2. Kidneys
3. Lungs
4. Heart

Answer: 4. Heart

Question 23. The human excretory system is made up of kidneys, ureters, urinary bladder, and urethra. The structure that helps in the formation of urine is

1. Urinary bladder
2. Urethra
3. Ureter
4. Kidney

Answer: 4. Kidney

Question 24. The kidneys filter waste products present in the blood and excrete them. This waste is produced due to the chemical reactions occurring in the body. The basic unit of the kidney is known as the

1. Ureter
2. Urethra
3. Neuron
4. Nephron

Answer: 4. Nephron

Question 25. Which of the following organs is not part of the excretory system?

1. Kidneys
2. Ovaries
3. Bladder
4. Ureter

Answer: 2. Ovaries

Question 26. Kidneys produce

1. Urea
2. Urine
3. Carbon dioxide
4. Nitrogen dioxide

Answer: 2. Urine

Question 27. The kidneys are part of the excretory system. They are present in the abdominal cavity. The kidneys perform the function of

1. Removing metabolic waste from blood
2. Removing carbon dioxide from blood
3. Controlling body movement
4. Aiding body movement

Answer: 1. Removing metabolic waste from blood

Question 28. Different animals excrete different types of nitrogenous wastes. Which of the following animals excretes ammonia?

1. Fish
2. Snake
3. Lizard
4. Cow

Answer: 1. Fish

Respiration And Excretion Summative Worksheet MCQs

Question 1. The process in which food is oxidized and energy is released is called

1. Excretion
2. Respiration
3. Digestion
4. Transpiration

Answer: 2. Respiration

Question 2. The end products of respiration are

1. Only carbon dioxide
2. Carbon dioxide and water
3. Carbon dioxide, water, and energy
4. Energy and carbon dioxide

Answer: 3. Carbon dioxide, water and energy

Question 3. The process in which only exchanges of gases take place is called

1. Respiration
2. Breathing
3. Combustion
4. Internal respiration

Answer: 1. Respiration

Question 4. In earthworms, the exchange of gases takes place through

1. Water
2. Gills
3. Moist skin
4. Spiracles

Answer: 3. Moist skin

Question 5. Alveoli are structures present in

1. Lungs
2. Bronchi
3. Gills
4. All the above

Answer: 1. Lungs

Question 6. The pigment hemoglobin is present in

1. White blood cells
2. Red blood cells
3. Platelets
4. Lymph

Answer: 1. White blood cells

Question 7. Transpiration in plants occurs through

1. Stomata
2. Leaf tips
3. Shoot apex
4. Roots

Answer: 1. Stomata

Question 8. The process of removal of waste products from the body is called

1. Transpiration
2. Evaporation
3. Excretion
4. Respiration

Answer: 3. Excretion

Question 9. The structures, present in the kidney, which act as filters are

1. Alveoli
2. Nephrons
3. Villi
4. None of the above

Answer: 2. Nephrons

Question 10. The urinary bladder opens into

1. Urethra
2. Nephron
3. Ureter
4. Neuron

Answer: 3. Ureter

Respiration And Excretion Fill In The Blanks

Question 1. During respiration, when energy is released, ______________ and ______________ are also produced.
Answer: Carbon dioxide and water

Question 2. The substance in red blood cells that joins with oxygen is called ______________.
Answer: Hemoglobin

Question 3. Anaerobic respiration is carried out by ______________
Answer: Yeast And Bacteria

Question 4. Skin helps in the excretion of water and ______________
Answer: Diffusion

Question 5. Excretion of wastes in unicellular organisms takes place by ______________
Answer: Excretion

Question 6. Getting rid of waste materials in living beings is called ______________
Answer: Urea and salt

Question 7. In humans, carbon dioxide is excreted through ______________
Answer: Lungs

Question 8. Kidneys are made up of a number of filters called ______________
Answer: Nephrons

Question 9. Kidneys are connected to the urinary bladder by long tubes called ______________
Answer: Ureter

Question 10. In insects, breathing occurs through openings called _____________
Answer: Spiracles

Question 11. Fish respire through structures called ______________
Answer: Gills

Question 12. Air sacs present in the lungs are called ______________
Answer: Alveoli

Question 13. The waste product of respiration is
Answer: Carbon dioxide And Water

Question 14. The process by which energy is produced for use in various functions of the body is called
Answer: Respiration

Respiration And Excretion Write True Or False

Question 1. In respiration, oxygen is required and carbon dioxide is given out.
Answer: True

Question 2. Diffusion of gases takes place through a small part of the root surface.
Answer: False

Question 3. In anaerobic respiration, a complete breakdown of food takes place.
Answer: False

Question 4. Earthworms absorb oxygen through moist skin.
Answer: True

Nutrition In Plants And Animals Formative Worksheet

Question 1. Statement 1: Excretion and reproduction are seen in plants. Statement 2: Respiration and movement are seen in earthworms.

1. Statement – 1 is true, Statement – 2 is false
2. Statement – 1 is false, Statement – 2 is true
3. Both statements are true
4. Both statements are false

Answer: 3. Both statements are true

Question 2. Statement 1: Any substance that can be broken down through chemical processes in the body of an organism to give energy is called food. Statement 2: The entire process of taking in food and drink by living organisms and using it for the purpose of growth and daily activities is called Nutrition.

1. Statement – 1 is true, Statement – 2 is false
2. Statement – 1 is false, Statement – 2 is true
3. Both statements are true
4. Both statements are false

Answer: 3. Both statements are true

Question 3. Which of the following is the type of nutrition?

1. Autotrophic
2. Heterotrophic
3. Aerobic
4. Both 1 and 2

Answer: 4. Both 1 and 2

Question 4. Spot the error/s in the following statements and rewrite correcting them.

1. Plants show heterotrophic nutrition.
2. Animals show autotrophic nutrition.
3. Both

Answer: 3. Both

Question 5. Pick the odd one out

1. Amoeba
2. Flatworm
3. Wood
4. Starfish

Answer: 3. Wood

Question 6. Assertion (A): Green plants are autotrophs. Reason (R): They prepare their own food material by the process of photosynthesis.

1. A is correct and R is the correct explanation of A.
2. A is correct and R is not the correct explanation of A.
3. A is correct and R is wrong.
4. A is wrong and R is correct.

Answer: 1. A is correct and R is the correct explanation of A.

Question 7. Which of the following are the raw materials for photosynthesis?

1. Sunlight, oxygen, CO2
2. Soil, water, CO2
3. Light, water, CO2
4. All

Answer: 3. Light, water, CO2

Question 8. Assertion (A): The process by which plants prepare their own food material is called Photosynthesis. Reason (R): This is called so because the food is prepared in the presence of sunlight.

1. A is correct and R is the correct explanation of A.
2. A is correct and R is not the correct explanation of A.
3. A is correct and R is wrong.
4. A is wrong and R is correct.

Answer: 1. A is correct and R is the correct explanation of A.

Question 9. Spot the error/s in the following statements and rewrite correcting them.

1. The mode of nutrition whereby a living organism makes its own food is called heterotrophic nutrition.
2. The process of using the energy in sunlight to convert water and carbon dioxide into carbohydrates (starch) and oxygen is called Photosynthesis.

Answer: 1. The mode of nutrition whereby a living organism makes its own food is called heterotrophic nutrition.

Question 10. Assertion (A): More water absorbed through root hairs. Reason (R): Root hairs increase the surface area of roots.

1. A is correct and R is the correct explanation of A.
2. A is correct and R is not the correct explanation of A.
3. A is correct and R is wrong.
4. A is wrong and R is correct.

Answer: 1. A is correct and R is the correct explanation of A.

Question 11. CO2 enters the leave through

1. Epidermis
2. Endodermis
3. Stoma
4. Grana

Answer: 3. Stoma

Question 12. Statement – 1: Water and soluble nutrients enter the root hair, pass through the secondary roots, travel through the main root into the stems, and reach the leaves through structures called xylem. Statement 2: This starch is carried to various parts of the plants through structures called phloem.

1. Statement -1 is true, Statement -2 is false.
2. Statement 1 is false, and Statement -2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 3. Both statements are true.

Question 13. Statement 1: All plants contain chlorophyll. Statement 2: All plants can prepare their own food material by the process of photosynthesis.

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 4. Both statements are false.

Question 14. Statement 1: A naturally occurring substance that gives a particular color to a plant or an animal part is called a pigment. Statement 2: The green leaves are green due to the presence of chlorophyll.

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 3. Both statements are true

Question 15. On average, there are about 500,000 chloroplasts per square millimeter of a leaf. If the area of a leaf of a bean plant is 10 cm2, then find the total number of chloroplast cells present in this leaf.

Answer: 500,000,000

Question 16. Choose the right order of transport of water and soluble nutrients in plants.

1. Leaves → stem → Main root → Secondary roots → Root hair
2. Root hair → Secondary roots → Main root → Stem Leaves
3. Root hair → Main root → Secondary root → Leaves Stem
4. Main root → Secondary root → Root hair → Stem Leaves

Answer: 2. Root hair → Secondary roots → Main root → Stem Leaves

Question 17. Say True or False

1. Nutrition is not the basic life characteristic of living organisms.
2. Plants make their own food through a process called photosynthesis.
3. Most plants are autotrophic in nature.

Answer: 1. Nutrition is not the basic life characteristic of living organisms.

Question 18. Statement 1: The mode of nutrition in which organisms cannot manufacture food and have to depend upon other plants and animals to obtain energy is called heterotrophic nutrition. Statement– 2: Organisms that have a heterotrophic mode of nutrition are called heterotrophs

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 3. Both statements are true.

Question 19. Statement – I: Cuscuta is a saprophyte. Statement– II: Mistletoe is a parasite.

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 1. Statement – 1 is true, Statement – 2 is false.

Question 20. Assertion (A): Dodder can cover woody plants and cause heavy damage to certain economically important crops. Reason (R): Parasitic plants harm the host plant.

1. A is correct and R is the correct explanation of A.
2. A is correct and R is not the correct explanation of A.
3. A is correct and R is wrong.
4. A is wrong and R is correct.

Answer: 1. A is correct and R is the correct explanation of A.

Question 21. Assertion (A): Saprophytes cannot prepare their own food material by the process of photosynthesis. Reason (R): They do not have green leaves and hence cannot prepare their own food.

1. A is correct and R is the correct explanation of A.
2. A is correct and R is not the correct explanation of A.
3. A is correct and R is wrong.
4. A is wrong and R is correct.

Answer: 1. A is correct and R is the correct explanation of A.

Question 22. Assertion: Though saprophytes do not perform photosynthesis, they can manage their nutrition. Reason (R): The fungi in the roots of saprophytes produce digestive juices that convert the dead and decaying matter into sugar which can be then used as food by these plants.

1. A is correct and R is the correct explanation of A.
2. A is correct and R is not the correct explanation of A.
3. A is correct and R is wrong.
4. A is wrong and R is correct.

Answer: 1. A is correct and R is the correct explanation of A.

Question 23. Statement – 1: Insectivorous plants are usually green but they can’t make their own food. Statement 2: The soil in which the insectivorous plants grow is deficient in certain nutrients, especially nitrogen.

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 3. Both statements are true.

Question 24. Statement – 1: Insectivorous plants are plants that derive some or most of their nutrients by trapping and consuming animals, mainly insects. Statement 2: In the pitcher plant, the leaf is modified to form a tubular pitcher-like structure. The inside of the pitcher is lined with downward-pointing hairs.

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 3. Both statements are true.

Question 25. Identify the following insectivorous plants.

1. The leaf in this plant is modified to form a tubular pitcher-like structure.
2. The leaves of these plants bear a large number of very small, pear-shaped bladders.
3. The leaves of this plant have tentacles with drops of a sticky substance called mucilage at the ends.
4. The leaf of this plant is modified into a big trap.

Answer: 1. The leaf in this plant is modified to form a tubular pitcher-like structure.

Question 26. Statement 1: The relation in which both plants benefit is called symbiosis. Statement 2: The relation in which one plant absorbs food from another growing green plant is called parasitism.

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 3. Both statements are true.

Question 27. Assertion (A): The relation between fungus and green algae is parasitic in nature. Reason (R): The relation between fungus and green algae is symbiotic in nature.

1. A is correct and R is the correct explanation of A.
2. A is correct and R is not the correct explanation of A.
3. A is correct and R is wrong.
4. A is wrong and R is correct.

Answer: 4. A is wrong and R is correct.

Question 28. Carbohydrates and fats are important nutrients required by the body. What is their primary function?

1. Keeping the bones healthy
2. Providing energy to the body
3. Keeping the eyes and skin healthy
4. Protecting the body against diseases

Answer: 2. Providing energy to the body

Question 29. Plants use carbon dioxide and energy from sunlight to form complex molecules. Plants prepare food in the form of

1. Amino acids
2. Carbohydrates
3. Sulfates
4. Fats

Answer: 2. Carbohydrates

Question 30. Athletes are advised to eat bananas and drink fruit juice as these are rich sources of 1 and provide 2. The information in which alternative completes the given statement?

1. 1- Carbohydrates 2-energy
2. 1-proteins 2-protection
3. 1- carbohydrates 2-protection
4. 1-proteins 2-energy

Answer: 1. 1- carbohydrates 2-energy

Question 31. Which of the following pairs of food items is rich in fats?

1. Gram and fish
2. Rice and mango
3. Pulses and potatoes
4. Ground nut and butter

Answer: 4. Ground nut and butter

Question 32. Foods rich in i and ii are known as energy-giving foods. These nutrients provide energy to the body. The information in which alternative completes the given statement?

1. 1-fats 2-proteins
2. 1-proteins 2-vitamins
3. 1-vitamins 2-carbohydrates
4. 1-carbohydrates 2-fats

Answer: 4. 1-carbohydrates 2-fats

Question 33. Which nutrient helps in the growth and repair of the body?

1. Fats
2. Carbohydrates
3. Proteins
4. Roughage

Answer: 3. Proteins

Question 34. Proteins are important nutrients required by the body. The primary function of proteins is to

1. Provide energy to the body
2. Help the body remove undigested food
3. Protect the body against various diseases
4. Help in the growth and repair of the body

Answer: 4. Help in the growth and repair of the body

Questions 35.1 and 2 are the major nutrients present in food. The information in which alternative completes the given statement?

1. 1- Carbohydrates 2- proteins
2. 1- Proteins 2-water
3. 1- Carbohydrates 2- water
4. 1-Roughage 2-carbohydrates

Answer: 1. 1- Carbohydrates 2- proteins

Question 36. Mineral salts are required by the body for

1. Providing energy
2. Growth and repair
3. Healthy teeth and strong bones
4. Proper functioning of intestines

Answer: 3. Healthy teeth and strong bones

Question 37. Minerals are required by the body in small amounts. The primary function of minerals is to help the body

1. Fight diseases
2. Get rid of undigested food
3. Use calcium for bones and teeth
4. Grow and remain healthy

Answer: 4. Grow and remain healthy

Question 38. Which nutrient helps the body fight diseases?

1. Proteins
2. Vitamin A
3. Vitamin C
4. Fats

Answer: 3. Vitamin C

Question 39. _____1______helps the body fight against various diseases, while _____2______helps the body uptake calcium for bones and teeth. The information in which alternative completes the given statement?

1. 1- Vitamin B 2- Vitamin A
2. 1- Vitamin A 2- Vitamin C
3. 1- Vitamin C 2- Vitamin D
4. 1- Vitamin D 2- Vitamin B

Answer: 3. 1- Vitamin C 2- Vitamin D

Question 40. Which of the following fruits is a good source of vitamin C?

1. Pear
2. Peach
3. Prune
4. Papaya

Answer: 4. Papaya

Question 41. What is the primary function of Vitamin D?

1. Providing energy to the body
2. Keeping the eyes and skin healthy
3. Helping the body get rid of undigested food
4. Helping the body use calcium for bones and teeth

Answer: 4. Helping the body use calcium for bones and teeth

Question 42. What is the main function of vitamin A in the body?

1. To add bulk to food
2. To keep skin and eyes healthy
3. To provide energy to the body
4. To help in calcium uptake by bones

Answer: 2. To keep skin and eyes healthy

Question 43. The given equation represents the process of photosynthesis. Sunlight Carbondioxide Oxygen Chlorophyll The information in which alternative completes the given equation?

1. 1- Water 2- Carbohydrate
2. 1- Carbohydrate 2-urea
3. 1-Urea 2-Fats
4. 1-Fats 2-Water

Answer: 1. 1- Water 2- Carbohydrate

Question 44. Which of the following nutrients is not digested by the digestive system but is required for the correct function of the intestines?

1. Carbohydrates
2. Vitamins
3. Fibers
4. Fats

Answer: 3. Fibers

Question 45. Plants are the sources of roughage. The primary function of roughage is to

1. Keep the skin healthy
2. Provide energy to the body
3. Help the body fight diseases
4. Help the body get rid of undigested food

Answer: 4. Help the body get rid of undigested food

Question 46. Food contains _____1______and _____2______along with the major nutrients. Apart from the nutrients, these components are also required by the body. The information in which alternative completes the given statement?

1. 1-water 2-fats
2. 1-fats 2-vitamins
3. 1-vitamins 2-roughage
4. 1-roughage 2-water

Answer: 4. 1-roughage 2-water

Question 47. Dietary fiber or roughage is a very important part of a balanced diet. The main function of roughage is to

1. Relieve constipation
2. Provide energy during stress
3. From the structural framework of the body
4. From the structural components of genetic materials

Answer: 1. Relieve constipation

Question 48. Plants use carbon dioxide and energy from sunlight to form complex molecules. Plants prepare food in the form of

1. Amino acids
2. Carbohydrates
3. Sulfates
4. Fats

Answer: 2. Carbohydrates

Question 49.1 and 2 are nutrients that provide the maximum amount of energy to the body. The information in which alternative completes the given statement?

1. 1-fats 2-proteins
2. 1-proteins 2-vitamins
3. 1-vitamins 2-carbohydrates
4. 1-carbohydrates 2-fats

Answer: 4. 1-carbohydrates 2-fats

Question 50. Some food substances are known as body-building foods. These food substances are rich in

1. Fats
2. Proteins
3. Vitamins
4. Carbohydrates

Answer: 2. Proteins

Question 51. Athletes are advised to eat bananas and drink fruit juice as these are rich sources of 1 and provide 2. The information in which alternative completes the given statement?

1. 1- carbohydrates 2- energy
2. 1-proteins 2-protection
3. 1- carbohydrates 2-protection
4. 1-proteins 2-energy

Answer: 1. 1- carbohydrates 2- energy

Question 52. _____1______ are required for _____2_____ and for maintaining its good health. The information in which alternative completes the given statement?

1. 1- Minerals 2- The proper growth of the body
2. 1- Roughage 2- The proper growth of the body
3. 1- Minerals 2- providing energy to the body
4. 1- Roughage 2- providing energy to the body

Answer: 1. 1- Minerals 2- The proper growth of the body

Question 53. Which nutrient helps the body to use calcium for bones and teeth?

1. Carbohydrates
2. Vitamin A
3. Fats
4. Vitamin D

Answer: 4. Vitamin D

Question 54. The primary function of vitamin A is to

1. Provide energy to the body
2. Keep the eyes and skin healthy
3. Help the body fight diseases
4. Help in the growth and repair of the body

Answer: 2. Keep the eyes and skin healthy

Nutrition In Plants And Animals Conceptive Worksheet

Question 1. Any substance that can be broken down through chemical processes in the body of an organism to give energy is called ________.
Answer: Food

Question 2. The entire process of taking in food and drink by living organisms and using it for the purpose of growth and daily activities is called ________.
Answer: Nutrition

Question 3. There are two major modes of nutrition are _________ and __________.
Answer: Autotrophic nutrition and Heterotrophic nutrition

Question 4. Green plants actually make their own food through a process called ___________.
Answer: Photosynthesis

Question 5. The mode of nutrition whereby a living organism makes its own food is called_________.
Answer: Autotrophic nutrition

Question 6. Organisms that are able to synthesize their own food are termed _________.
Answer: Autotrophs

Question 7. The term photosynthesis was coined by _____________in 1883.
Answer: Charles Reid Barnes

Question 8. The photosynthesis reaction is ___________.
Answer: \(\text { Carbon dioxide }+ \text { Water } \underset{\text { and chlorophyll }}{\stackrel{\text { sunlight }}{\longrightarrow}} \text { Starch }+ \text { Oxygen }\)

Question 9. In the photosynthesis process, ___________ is absorbed from the atmosphere and is taken in by the leaves.
Answer: Carbon Dioxide

Question 10. In the photosynthesis process, ___________ absorbed by the roots reacts with carbon dioxide in the presence of sunlight to produce starch and oxygen.
Answer: Water

Question 11. The end products of photosynthesis are __________ and __________.
Answer: Starch and oxygen

Question 12. _________ is the process of using the energy in sunlight to convert water and carbon dioxide into carbohydrates (starch) and oxygen.
Answer: Photosynthesis

Question 13. _________is a green pigment present in the structures called chloroplasts of leaves in a plant.
Answer: Chlorophyll

Question 14. _________ is a naturally occurring substance that gives a particular color to a plant or an animal part.
Answer: Pigment

Question 15. CO2 is obtained from the atmosphere through small openings called _________in the underside of the leaves.
Answer: Stomata

Question 16. Water and soluble nutrients enter the root hair, pass through the secondary roots, travel through the main root into the stems, and reach the leaves through structures called ________.
Answer: Xylem

Question 17. The starch is carried to various parts of the plants through structures called _______.
Answer: Phloem

Question 19. The mode of nutrition in which organisms cannot manufacture food and have to depend upon other plants and animals to obtain energy is called ____________nutrition.
Answer: Heterotrophic

Question 20. Organisms that have a heterotrophic mode of nutrition are called __________.
Answer: Heterotrophs

Question 21. Heterotrophic plants are classified into ____________, ____________, ____________ and ____________.
Answer: Parasitic plants, symbiotic plants, saprophytic plants, insectivorous plants

Question 22. Parasitic plants are those which absorb food from another growing green plant, called the _______.
Answer: Host

Question 23. ________ and _________ are examples of parasitic plants.
Answer: Cuscuta and mistletoe

Question 24. A parasitic plant, ___________, bears the world’s largest flower.
Answer: Rafflesia

Question 25. Saprophytic plants are usually ____________, but can have brightly coloured flowers.
Answer: Whitish

Question 26. Indian Pipe and coral root are examples of __________ plants.
Answer: Saprophytic

Question 27. Indian Pipe is found commonly in __________and ___________.
Answer: Asia and throughout North America

Question 28. The roots of saprophytes contain living organisms called __________.
Answer: Fungi

Question 29. ______________are plants that derive some or most of their nutrients by trapping and consuming animals, mainly insects.
Answer: Insectivorous plants are plants that derive some or most of their nutrients by trapping and consuming animals, mainly insects.

Question 30. In the ____________, the leaf is modified to form a tubular pitcher-like structure.
Answer: Pitcher plant

Question 31. The leaves of ____________have tentacles with drops of a sticky substance called mucilage at the ends.
Answer: Sundew (Drosera)

Question 32. Roots of certain plants such as peas contain bacteria called __________.
Answer: Rhizobium

Question 33. Parasitic plants derive food from the host by modified _________ ( roots /leaf)
Answer: Leaf

Question 34. __________ (Mushrooms / Lichens) are an association between a fungus and an algae.
Answer: Lichens are an association between a fungus and an algae.

Question 35. Peas have a symbiotic relationship with a/an _____________. (fungus/algae/bacteria/virus)
Answer: Bacteria

Question 36. Michael is told by his teacher that food is broken down into smaller pieces in the human body. Nutrients from food are absorbed during this process. The process referred to in the preamble is performed by the

1. Respiratory system
2. Excretory system
3. Digestive system
4. Nervous system

Answer: 3. Digestive system

Question 37. A biology class was divided into four groups and each group was asked to grow a plant.

1. Group 1 watered their plant with water collected from the school laboratory tap.
2. Group 2 watered their plant with water containing dissolved nutrients.
3. Group 3 watered their plant with water collected from a polluted lake.
4. Group 4 watered their plant with water containing dissolved salt. The group whose plant will grow the best is

Answer: 2. Group 2 watered their plant with water containing dissolved nutrients.

Question 38. Which nutrient helps in the growth and repair of the body?

1. Fats
2. Carbohydrates
3. Proteins
4. Roughage

Answer: 3. Proteins

Question 39. Foods rich in 1 and 2 are known as energy-giving foods. These nutrients provide energy to the body. The information in which alternative completes the given statement?

1. 1- fats 2- proteins
2. 1- proteins 2- vitamins
3. 1- vitamins 2- carbohydrates
4. 1- Carbohydrates 2- Fats

Answer: 4. 1- Carbohydrates 2- Fats

Question 40. Which mineral is required to keep the bones healthy?

1. Iron
2. Iodine
3. Sodium
4. Calcium

Answer: 4. Calcium

Question 41. Which nutrient keeps the skin and eyes healthy?

1. Vitamin A
2. Vitamin C
3. Fats
4. Proteins

Answer: 1. Vitamin A

Question 42. What is the primary function of vitamin C?

1. Providing energy to the body
2. Keeping the skin and eyes healthy
3. Helping the body fight diseases
4. Helping the body get rid of undigested food

Answer: 3. Helping the body fight diseases

Question 43. Wrestlers and bodybuilders need to eat food items rich in _____1______, which helps them keep their bodies strong while food items rich in _____2______provide protection against diseases. The information in which alternative completes the given statement?

1. 1- carbohydrates 2- proteins
2. 1- Proteins 2- Vitamins and minerals
3. 1- Carbohydrates 2- Vitamins and minerals
4. 1- proteins 2- fats

Answer: 2. 1- proteins 2- vitamins and minerals

Question 44. Roughage is mainly provided by plant-derived products in food. What is the main function of roughage in our body?

1. To provide energy to the body
2. To keep eyes and skin healthy
3. To help the body fight various diseases
4. To help the body get rid of undigested food

Answer: 4. To help the body get rid of undigested food

Question 45. Which component of food helps the body get rid of undigested food?

1. Water
2. Roughage
3. Minerals
4. Fats

Answer: 2. Roughage

Question 47. The given flowchart represents some nutrients that are essential for our body. The information in which alternative completes the given flowchart?

1. 1-water 2-roughage
2. 1-roughage 2-sprouts
3. 1-sprouts 2-water
4. 1-water 2-sweets

Answer: 1. 1-water 2-roughage

Nutrition In Plants And Animals Summative Worksheet MCQs

Question 1. Which one is an insectivorous plant?

1. Lichens
2. Venus fly-trap
3. Mushrooms
4. Yeast

Answer: 1. Lichens

Question 2. Two different organisms living together and both benefiting from each other, are known as

1. Saprophytic
2. Symbiotic
3. Parasitic
4. Heterotrophs

Answer: 1. Saprophytic

Question 3. The process, by which green plants prepare their own food is known as

1. Photosynthesis
2. Respiration
3. Symbiosis
4. None of these

Answer: 1. Photosynthesis

Question 4. The green color pigment in the leaves is

1. Chlorophyll
2. Anthocyanin
3. Protoplast
4. Chloroplast

Answer: 1. Chlorophyll

Question 5. Tiny pores on the lower surface of the leaf are

1. Lamina
2. Stomata
3. Chlorophyll
4. Leaf stalk

Answer: 2. Stomata

Nutrition In Plants And Animals  Fill In The Blanks

Question 1. The body-building function of food is related to the presence of ___________.
Answer: Proteins

Question 2. Energy-giving foods are carbohydrates and ___________
Answer: Facts

Question 3. Nutrient balance can only be achieved by supplying all nutrients in the correct ___________ and ___________ proportions.
Answer: Balanced

Question 4. ___________ and ___________ are the major sources of carbohydrates in our diets.
Answer: Rice and milk

Question 5. Water makes up approximately ___________ percent of the total weight of an adult.
Answer: 78

Question 6. Pulses are rich in ___________.
Answer: Proteins

Question 7. Minerals present in bones and teeth are ___________ and ___________.
Answer: Calcium and phosphorous

Question 8. The main function of carbohydrates is to provide ___________ to the body.
Answer: Energy

Question 9. The vitamin necessary for blood clotting is ___________.
Answer: K

Question 10. The vitamin synthesized by the skin in sunlight is ___________.
Answer: Vitamin D

Question 11. Deficiency of iodine leads to ___________ in man.
Answer: Goiter

Question 12. Food energy is measured in units called ___________.
Answer: Calories

Question 13. We get most of our calories from and ___________.
Answer: Food

Question 14. Citrus fruits are rich in vitamin ___________.
Answer: Vitamin C

Question 15. Deficiency of vitamin C causes a disease called ___________.
Answer: Scurvy

Question 16. To stay healthy, we should consume ___________
Answer: Balanced Diet

Question 17. Two foods that have a lot of starch are ___________ and ___________.
Answer: Rice and Board

Question 18. Green plants use ___________ and ___________ to prepare food.
Answer: Carbon dioxide water and sunlight

Question 19. During photosynthesis, the gas released is ___________.
Answer: Oxygen

Question 20. The presence of starch can be tested by using ___________.
Answer: Iodine

Question 21. On testing with iodine, starch turns ___________ in color.
Answer: Bule-black

Question 22. The pigment ___________ is present inside certain structures called ___________ in a leaf.
Answer: Chlorophyll, chloroplast

Question 23. The small pores present on the leaves through which carbon dioxide enters the leaf are called ___________.
Answer: Stomata

Nutrition In Plants And Animals Write True Or False

Question 1. You use more calories when you swim than when you walk.
Answer: True

Question 2. Proteins supply the maximum calories to our bodies.
Answer: False

Question 3. A diet that supplies enough calories is a balanced diet.
Answer: False

Question 4. We can live without proteins.
Answer: False

Question 5. Iron is an important part of blood.
Answer: True

Question 6. Potato is rich in carbohydrates.
Answer: True

Question 7. Iodine solution is used to test the presence of fats in the food.
Answer: False

Question 8. The chlorophyll pigment enables the plant to use sunlight.
Answer: True

Question 9. If there were no plants, the amount of oxygen in the air would go on decreasing.
Answer: True

Question 10. Green plants prepare their food by using oxygen and water.
Answer: False

Question 11. Photosynthesis occurs only in chlorophyll-containing parts of the plant.
Answer: True

Name the following:

Question 1. Energy-providing foods
Answer: Carbohydrates and fats

Question 2. Growth-promoting foods
Answer: proteins

Question 3. Protective foods
Answer: Vitamins and minerals

Question 4. Some food items are rich in calcium.
Answer: bread, milk, cheese, egg, meat etc

Question 5. Three sources of each of the following nutrients:

• Carbohydrates
• Fats
• Proteins

Answer:

• Wheat, Rice, Maize, Potato, Bread, Honey, Common sugar, Milk, Banana
• Pulses (peas, soybean), Egg, Meat, Paneer, Cheese, Groundnut, Milk, Fish
• Butter, Cheese Vegetable oil (coconut oil, Groundnut oil, Sunflower oil), Nuts, Milk, Animal fat from meat

Question 6. Diseases caused by the deficiency of

• Vitamin A
• Iron
• Vitamin C
• Iodine

Answer:

• Night blindness (poor night vision)
• Anaemia
• Scurvy (bleeding of gums and swelling of joints)
• Goitre (enlarged thyroid), Abnormal metabolism

Question 7. Mineral supplied by the following foods

• Seafood
• Milk
• Table salt

Answer:

• Phosphorous, iodine, and fluorine
• Calcium, phosphorus, potassium
• Sodium and iodine

Question 8. The pigment gives green color to leaves.
Answer: chlorophyll

Question 9. Gas is used in photosynthesis.
Answer: Chlorophyll

Question 10. One plant that can eat insects.
Answer: Drosera

Life Under A Microscope (Microorganisms) Formative Worksheet

Question 1. Robert Hooke was the first scientist who coined the term ‘cell’. Which cell did he observe under the microscope?

1. Fiber
2. Cork
3. Root
4. Leaf

Answer: 2. Cork

Question 2. The range of size of bacteria is

1. 0.2 to 100 microns
2. 0.2 to 100 mm
3. 0.2 to 100 cm
4. 0.2 to 100 m

Answer: 1. 0.2 to 100 microns

Question 3. Which of the following bacteria is rod-shaped?

1. Micrococcus
2. Streptococcus
3. Sarcina
4. Lactobacillus

Answer: 4. Lactobacillus

Question 4. Which of the following bacteria is ball-shaped?

1. Micrococcus
2. Streptococcus
3. Sarcina
4. All

Answer: 4. All

Question 5. Which of the following is absent in a bacterial cell?

1. Nuclear material
2. Membrane-bound cell organelles
3. Cell wall
4. All

Answer: 2. Membrane-bound cell organelles

Question 6. The nutrition in bacterial

1. Autotrophic
2. Heterotrophic
3. Chemotrophic
4. All

Answer: Heterotrophic

Question 7. Bacteria are

1. Aerobes
2. Anaerobes
3. Both
4. None

Answer: 3. Both

Question 8. Bacteria reproduce by

1. Fragmentation
2. Spore formation
3. Binary fission
4. Multiple fission

Answer: 3. Binary fission

Question 9. Which of the following diseases are caused by bacteria?

1. Cholera
2. Tuberculosis
3. AIDS
4. All

Answer: 4. All

Question 10. Which of the following examples represents a symbiotic relationship between two organisms?

1. Fungi growing on leather
2. Lice present on the human head
3. Cuscuta intertwined on a tree
4. Rhizobium present in the root of gram

Answer: 4. Rhizobium present in the root of gram

Question 11. Decomposers decompose matter present in dead plants and animals to ammonia. This ammonia is converted into nitrates which are absorbed by plant roots. This process is called nitrification. Ammonia is converted into nitrates with the help of

1. Bacteria
2. Fungus
3. Protists
4. Viruses

Answer: 1. Bacteria

Question 12. ____1____which are present in the root nodules of a pea plant follow ____2____mode of nutrition. The information in which alternative completes the given statement?

1. 1 – Cuscuta; 2 – saprotrophic
2. 1 – Rhizobium; 2 – saprotrophic
3. 1 – Rhizobium; 2 – symbiotic
4. 1 – Cuscuta; 2 – symbiotic

Answer: 3. 1 – Rhizobium; 2 – symbiotic

Question 13. Which of the following microorganisms is capable of fixing atmospheric nitrogen and converting it into some usable nitrogenous compounds?

1. Fungi
2. Virus
3. Bacteria
4. Protozoa

Answer: 3. Bacteria

Question 14. Lactobacillus is a _____1____ that promotes the formation of ____2____.
The information in which alternative completes the given statement?

1. 1– bacterium; 2– curd
2. 1– bacterium; 2– alcohol
3. 1– fungus; 2– curd
4. 1– fungus; 2– alcohol

Answer: 1. 1– bacterium; 2– curd

Question 15. Rhizobium bacteria are present in the root nodules of leguminous plants such as gram pea. The Rhizobium bacteria present in leguminous plants help in the fixation of

1. Carbon
2. Oxygen
3. Phosphorus
4. Nitrogen

Answer: 4. Nitrogen

Question 16. Which of the following is a fungus?

1. Acetobacter
2. Salmonella
3. Lactobacillus
4. Aspergillus

Answer: 4. Aspergillus

Question 17. Fungi are

1. Unicellular
2. Multicellular
3. Both
4. None

Answer: 3. Both

Question 18. Mushroom is a type of fungi. Which mode of nutrition is exhibited by mushrooms?

1. Autotrophic
2. Insectivorous
3. Aprotrophic
4. Parasitic

Answer: 3. Aprotrophic

Question 19. Which of the following organisms exhibits a saprotrophic mode of nutrition?

1. Mushroom
2. Rhizobium
3. Algae
4. Wheat

Answer: 1. Mushroom

Question 20. Organisms that obtain their food from dead and decaying matter are called saprotrophs. Which of the following organisms has a saprotrophic mode of nutrition?

1. Mushroom
2. Rhizobium
3. Cuscuta
4. Rose

Answer: 1. Mushroom

Question 21. Potato blight is caused by

1. Bacteria
2. Fungi
3. Virus
4. Protozoa

Answer: 2. Fungi

Question 22. Asexual reproduction in fungi takes place through

1. Binary fission
2. Budding
3. Fragmentation
4. All

Answer: 4. All

Question 23. Yeast reproduces by

1. Binary fission
2. Budding
3. Fragmentation
4. Spore formation

Answer: 2. Budding

Question 24. Bread mold reproduces by

1. Binary fission
2. Budding
3. Fragmentation
4. Spore formation

Answer: 4. Spore formation

Question 25. Which of the following causes diseases in crops?

1. Puccinia
2. Microsporium
3. Arthroderma
4. Dactylella

Answer: 1. Puccinia

Question 26. Which of the following contains a poison that is deadly to human beings?

1. Puccinia
2. Amanita
3. Arthrobotrys
4. Dactylella

Answer: 2. Amanita

Question 27. Yeast is commercially used for the preparation of alcohol and ____1____ by the process of _____2______. The information in which alternative completes the given statement?

1. 1 – wine; 2 – fermentation
2. 1 – antibiotics; 2 – fermentation
3. 1 – wine; 2 – aerobic respiration
4. 1 – antibiotics; 2 – aerobic respiration

Answer: 1. 1 – wine; 2 – fermentation

Question 28. The addition of yeast is responsible for the presence of small holes in bread after it is baked. These holes appear because of the evolution of _____1_____ during _____2_____. Which alternative completes the given statement?

1. 1 – Carbon dioxide; 2 – Fermentation
2. 1 – Oxygen; 2 – Fermentation
3. 1 – Carbon dioxide; 2 – Photosynthesis
4. 1 – Oxygen; 2 – Photosynthesis

Answer: 1. 1 – Carbon dioxide; 2 – Fermentation

Question 29. Vaccines are not available for which of the following diseases?

1. Tuberculosis
2. Hepatitis
3. Cholera
4. Malaria

Answer: 4. Malaria

Question 30. Penicillin is an antibiotic that inhibits the growth of bacteria by inhibiting the synthesis of cell walls in them. Penicillin does not have any effect on humans. Which of the following statements is incorrect regarding the given observation?

1. Penicillin is effective only against bacteria.
2. Antibiotics target specific biochemical pathways.
3. Large doses of penicillin will have an effect on humans also.
4. Humans lack the biochemical pathway in which penicillin acts.

Answer: 3. Large doses of penicillin will have an effect on humans also.

Question 31. _____1_____ are weakened or dead microorganisms which, when injected into the body of a healthy person, protect the person from disease-causing microorganisms by initiating the production of ____2______. The information in Which alternative completes the given statement?

1. 1 – Vaccines; 2 – antibodies
2. 1 – Vaccines; 2 – antigens
3. 1 – Antibiotics; 2 – antibodies
4. 1 – Antibiotics; 2 – antigens

Answer: 1. 1 – Vaccines; 2 – antibodies

Question 32. _____1_____ and ____2____ are examples of antibiotics that are derived from bacteria and fungi. The information in Which alternative completes the given statement?

1. 1– Glucose; 2 – alcohol
2. 1– Alcohol; 2– streptomycin
3. 1– Streptomycin; 2 – tetracycline
4. 1 – Tetracycline; 2– glucose

Answer: 3. 1– Streptomycin; 2 – tetracycline

Question 33. _____1_____ prepare their own food by the process of photosynthesis. Therefore, they are known as _____2_____. The information in which alternative completes the given statements?

1. 1 – Fungi; 2 – autotrophs
2. 1 – Fungi; 2 – saprotrophs
3. 1 – Algae; 2 – autotrophs
4. 1 – Algae; 2 – saprotrophs

Answer: 3. 1 – Algae; 2 – autotrophs

Question 34. Which of the following organisms exhibits a symbiotic relationship?

1. Mushroom
2. Lichen
3. Pitcher plant
4. Soyabean

Answer: 2. Lichen

Question 35. Lichens exhibit symbiotic relationship between _____1_____ and _____2_____. The information in Which alternative completes the given statement?

1. 1 – fungus; 2 – alga
2. 1 – alga; 2 – Rhizobium
3. 1 – Rhizobium; 2 – soyabean
4. 1 – soybean; 2 – fungus

Answer: 1. 1 – fungus; 2 – alga

Question 36. Which of the following statements regarding the symbiotic relationship between algae and fungi is correct?

1. Fungi contain chlorophyll.
2. Algae manufacture food.
3. Fungi provide food.
4. Algae provide water.

Answer: 2. Algae manufacture food.

Question 37. Blue-green algae increase the fertility of soil. Which plant nutrient is added to the soil by blue-green algae?

1. Phosphorus
2. Potassium
3. Nitrogen
4. Calcium

Answer: 3. Nitrogen

Question 38. Biological nitrogen fixation is the process of fixation of atmospheric nitrogen into the soil by the action of microorganisms. Examples of biological nitrogen fixers include _____1_____ and _____2_____. The information in which alternative completes the given statement?

1. 1 – viruses; 2 – fungi
2. 1 – fungi; 1 – blue-green algae
3. 1 – blue-green algae; 2 – bacteria
4. 1 – bacteria; 2 – viruses

Answer: 3. 1 – blue-green algae; 2 – bacteria

Question 39. Which of the following statements about a symbiotic relationship is correct?

1. It involves a relationship where one organism grows as a parasite on the body of another organism.
2. It involves a relationship where the two organisms live together and share nutrients.
3. It is a mode of nutrition where an organism feeds on dead and decaying matter.
4. It is a mode of nutrition where an organism traps and feeds on insects.

Answer: 2. It involves a relationship where the two organisms live together and share nutrients.

Question 40. The golden-brown microscopic algae, rich in marine places are

1. Chlamydomonas
2. Osdllatoria
3. Laminaria
4. Diatoms

Answer: 4. Diatoms

Question 41. The ‘jewels of the plant world’ are

1. Yeasts
2. Bacteria
3. Fungi
4. Diatoms

Answer: 4. Diatoms

Question 42. Which of the following are generally considered to be a great nuisance by many people?

1. Yeasts
2. Bacteria
3. Fungi
4. Algae

Answer: 4. Algae

Question 43. Which of the following are algae generally used in making glass, toothpaste, filters, and polishing?

1. Diatoms
2. Red algae
3. Brown algae
4. Blue green algae

Answer: 1. Diatoms

Question 44. Which of the following algae is rich in iodine?

1. Diatoms
2. Red algae
3. Brown algae
4. Blue green algae

Answer: 3. Brown algae

Question 45. Protozoa are included in

1. Plant kingdom
2. Animal kingdom
3. Both
4. None

Answer: 2. Animal kingdom

Question 46. Locomotion in protozoans is by

1. Pseudopodia
2. Cilia
3. Flagella
4. Akk

Answer: 4. Akk

Question 47. Which of the following are harmful?

1. Amoeba
2. Paramecium
3. Entamoeba histolytica
4. All

Answer: 3. Entamoeba histolytica

Question 48. Sleeping sickness is caused by

1. Trypanosoma
2. Paramecium
3. Entamoeba histolytica
4. Plasmodium

Answer: 1. Trypanosoma

Question 49. Choose the correct statement.

1. Protozoa form an important link in aquatic food chains.
2. Protozoa decompose organic matter and thereby help in converting organic wastes into simpler useful soil nutrients.
3. Protozoa also exist in symbiotic association with other organisms.
4. All

Answer: 4. All

Question 50. Which of the following is almost closer to a nonliving being?

1. Protozoa
2. Bacteria
3. Virus
4. Fungi

Answer: 3. Virus

Question 51. Which of the following is a bacterial disease?

1. Chickenpox
2. Smallpox
3. Typhoid
4. Rabies

Answer: 3. Typhoid

Question 52. Ringworm is caused by

1. Bacteria
2. Fungi
3. Virus
4. Protozoa

Answer: 2. Fungi

Question 53. Which of the following is caused by protozoans?

1. Malaria
2. Dysentery
3. Sleeping sickness
4. All

Answer: 4. All

Question 54. Anthrax disease in cattle is caused by

1. Bacteria
2. Fungi
3. Virus
4. Protozoa

Answer: 4. Protozoa

Life Under A Microscope (Microorganisms) Conceptive Worksheet

Question 1. Robert Hooke coined the term cell. Which part of a plant did Robert Hooke use to observe a cell using a microscope?

1. Cork
2. Leaf
3. Root
4. Flower

Answer: 1. Cork

Question 2. Which of the following bacteria is spiral-shaped?

1. Vibrio
2. Treponema
3. Camphilovector
4. All

Answer: 4. All

Question 3. Which of the following is present in disease-producing bacteria?

1. Nuclear material
2. Capsule
3. Cell wall
4. All

Answer: 2. Capsule

Question 4. Bacteria can be included in

1. Plants
2. Animals
3. Both
4. None

Answer: 3. Both

Question 5. Severe digestive diseases are caused due to

1. Acetobacter
2. Salmonella
3. Lactobacillus
4. All

Answer: 2. Salmonella

Question 6. Which of the following nutrients will not be enriched in a soil lacking the presence of bacteria and fungi?

1. Oxygen
2. Nitrogen
3. Carbon dioxide
4. Sulfur dioxide

Answer: 2. Nitrogen

Question 7. Microorganisms are used in the manufacture of many food products and beverages. Which of the following processes occur during the manufacture of wine by microorganisms?

1. Respiration
2. Photosynthesis
3. Fermentation
4. Digestion

Answer: 3. Fermentation

Question 8. Plants are incapable of taking up nitrogen directly from the atmosphere. Which of the following organisms converts atmospheric nitrogen and makes it available to plants into the soluble form?

1. Protozoa
2. Bacteria
3. Fungi
4. Virus

Answer: 2. Bacteria

Question 9. Lactobacillus, which is a friendly microorganism, is used in the preparation of which of the following substances?

1. Curd
2. Wine
3. Bread
4. Alcohol

Answer: 1. Curd

Question 10. The nitrogen cycle helps in the movement of nitrogen within the biosphere. In the nitrogen cycle, soil-nitrifying bacteria help in the

1. Formation of nitrates
2. Formation of nitrogen
3. Absorption of nitrates by plants
4. Absorption of nitrates by animals

Answer: 1. Formation of nitrates

Question 11. Amit took a bit of a substance X, mounted it on a slide, and viewed it under the microscope. He observed the given organism. Which of the following substances did Amit observe?

1. Milk
2. Vinegar
3. Fruit juice
4. Buttermilk

Answer: 4. Buttermilk

Question 12. Which of the following statements about the nitrogen cycle is incorrect?

1. Plants can directly absorb nitrogen from the atmosphere.
2. Nitrogen enters the animal world when it feeds on plants.
3. Nitrogen returns to the atmosphere by the action of certain bacteria.
4. Animal waste is converted into nitrogenous compounds by certain bacteria.

Answer: 1. Plants can directly absorb nitrogen from the atmosphere.

Question 13. Mushroom is a

1. Bacteria
2. Fungus
3. Protozoa
4. Virus

Answer: 2. Fungus

Question 14. Bread molds consist of thread-like structures called

1. Pseudopodia
2. Tentacles
3. Hyphae
4. Clitellum

Answer: 3. Hyphae

Question 15. Mushroom is a type of fungi. Which of the following statements about fungi is incorrect?

1. They grow in nutrient-deficient soil.
2. They consume food in the solution form.
3. They obtain food from dead and decaying matter.
4. They secrete digestive juices on dead and decaying matter.

Answer: 1. They grow in nutrient-deficient soil.

Question 16. While having a walk in a garden, Sonia observed numerous mushrooms growing on a piece of wood lying on the ground. Mushrooms obtain nutrition by

1. Manufacturing their own food
2. Trapping and feeding on insects
3. Growing as a parasite on the body of the plant
4. Feeding on dead and decaying organic matter

Answer: 4. Feeding on dead and decaying organic matter

Question 17. The nitrogenous wastes produced by the dead remains of plants and animals are reconverted into nitrogen compounds, which can again be used by plants. Which two organisms convert nitrogenous wastes into nitrogen compounds?

1. Bacteria and fungi
2. Fungi and algae
3. Algae and virus
4. Virus and bacteria

Answer: 1. Bacteria and fungi

Question 18. Fungi are

1. Autotrophic
2. Saprophytic
3. Parasitic
4. All

Answer: 2. Saprophytic

Question 19. Wheat rust is caused by

1. Bacteria
2. Fungi
3. Virus
4. Protozoa

Answer: 2. Fungi

Question 20. The common method of reproduction in fungi is

1. Binary fission
2. Budding
3. Fragmentation
4. Spore formation

Answer: 4. Spore formation

Question 21. Microsporium causes disease in

1. Crops
2. Humans
3. Animals
4. None

Answer: 2. Humans

Question 22. Yeast is not used in the preparation of which of the following substances?

1. Curd
2. Wine
3. Bread
4. Alcohol

Answer: 1. Curd

Question 23. Yeast is used to manufacture alcoholic beverages like wine and beer. It is used in the production of bread. It is also used as a nutrient supplement for human beings. Which of the following processes uses yeast to make wines and breads?

1. Photosynthesis
2. Fermentation
3. Decomposition
4. Chemosynthesis

Answer: 2. Fermentation

Question 24. Microorganisms are used for producing medicines called antibiotics, which reduce the growth or kill other microorganisms. Which two microorganisms are used in the preparation of antibiotics?

1. Bacteria and fungi
2. Fungi and protozoa
3. Protozoa and viruses
4. Viruses and bacteria

Answer: 1. Bacteria and fungi

Question 25. Yeast is used in the commercial production of _____1_____ and _____2_____. The information in which alternative completes the given statement?

1. 1 – vinegar; 2 – alcohol
2. 1 – alcohol; 2 – oil
3. 1 – oil; 2 – glucose
4. 1 – glucose; 2 – vinegar

Answer: 2. 1 – alcohol; 2 – oil

Question 26. ___1___ are substances produced by certain microbes, which inhibit the growth of other microbes while ___2___ are substances that are produced by our body to fight against disease. The information in which alternative completes the given statement?

1. 1 – antibodies; 2 – antibiotics
2. 1 – toxins; 2 – antibodies
3. 1 – antibiotics; 2 – toxins
4. 1 – antibiotics; 2 – antibodies

Answer: 4. 1 – antibiotics; 2 – antibodies

Question 27. Lichens are organisms that are formed as a result of a symbiotic relationship between two organisms. Which two organisms form a symbiotic relationship in lichens?

1. Algae and bacteria
2. Bacteria and plants
3. Plants and fungi
4. Fungi and algae

Answer: 4. Fungi and algae

Question 28. Which of the following statements about a symbiotic relationship is correct?

1. It involves a relationship where one organism grows as a parasite on the body of another organism.
2. It involves a relationship where the two organisms live together and share nutrients.
3. It is a mode of nutrition where an organism feeds on dead and decaying matter.
4. It is a mode of nutrition where an organism traps and feeds on insects.

Answer: 2. It involves a relationship where the two organisms live together and share nutrients.

Question 29. Heterotrophs are organisms that are dependent on plants and other animals for food. Which of the following organisms is not a heterotroph?

1. Algae
2. Cuscuta
3. Mushroom
4. Earthworm

Answer: 1. Algae

Question 30. Which of the following statements about the nitrogen cycle is correct?

1. Animals obtain nitrogen directly from the soil.
2. Plants take nitrogen from the atmosphere through stomata.
3. Rhizobium converts nitrogen compounds into free nitrogen.
4. Blue-green algae help in the fixation of free atmospheric nitrogen.

Answer: 4. Blue-green algae help in the fixation of free atmospheric nitrogen.

Question 31. Organisms ‘X’ and ‘Y’ live in close association with each other. ‘X’ depends on ‘Y’ for support and ‘Y’ depends on ‘X’ for its food. Which of the following pairs represents organisms ‘X’ and ‘Y’?

1. Cuscuta and Peepal tree
2. Pitcher plant and insect
3. Fungi and bacteria
4. Fungi and algae

Answer: 4. Fungi and algae

Question 32. Diatoms are

1. Unicellular
2. Colonial
3. Filamentous
4. All

Answer: 4. All

Question 33. Which of the following can fix atmospheric nitrogen in the soil?

1. Diatoms
2. Red algae
3. Brown algae
4. Blue-green algae

Answer: 4. Blue-green algae

Question 34. Which of the following algae are used as food?

1. Chlorella
2. Porphyra
3. Blue-green algae
4. All

Answer: 1. Chlorella

Question 35. Plasmodium lacks

1. Cell wall
2. Chlorophyll
3. Mitochondria
4. All

Answer: 4. All

Question 36. Which of the following protozoan causes malaria

1. Amoeba
2. Paramecium
3. Entamoeba histolytica
4. Plasmodium

Answer: Plasmodium

Question 37. Which of the following conditions are favorable for bacterial growth?

1. Moist
2. Warm
3. Dry
4. Hot

Answer: 1. Moist

Question 38. Measles is caused by

1. Bacteria
2. Fungi
3. Virus
4. Protozoa

Answer: 3. Virus

Question 39. Malaria is caused by

1. Bacteria
2. Fungi
3. Virus
4. Protozoa

Answer: 4. Protozoa

Question 40. Foot and mouth disease in cattle is caused by

1. Bacteria
2. Fungi
3. Virus
4. Protozoa

Answer: 3. Virus

Question 41. Tobacco mosaic in tobacco is caused by

1. Bacteria
2. Fungi
3. Virus
4. Protozoa

Answer: 3. Virus

Question 42. Rust in plants is caused by

1. Bacteria
2. Fungi
3. Virus
4. Protozoa

Answer: 2. Fungi

Life Under A Microscope (Microorganisms) Summative Worksheet Multiple Choice Questions

Question 1. Bacilli bacteria are

1. Rod-shaped
2. Spiral in shape
3. Ball-shaped
4. Variable in shape

Answer: 1. Rod-shaped

Question 2. Bacteria, on the basis of nutrition, maybe

1. Autotrophic
2. Both autotrophic and heterotrophic
3. Heterotrophic
4. Symbiotic

Answer: 2. Both autotrophic and heterotrophic

Question 3. Fungi, on the basis of nutrition, are

1. Saprophytic
2. Parasitic
3. Autotrophic
4. Saprophytic and parasitic

Answer: 4. Saprophytic and parasitic

Question 4. Algae are found

1. In water
2. On tree branches
3. On land
4. On mountains

Answer: 3. On land

Question 5. Heterocyst is found in

1. Algae
2. Brown algae
3. Blue-green algae
4. Diatoms

Answer: 3. Blue-green algae

Question 6. Sleeping sickness is caused by a

1. Protozoan
2. Fungus
3. Alga
4. Bacterium

Answer: 1. Protozoan

Question 7. Non-cellular microbes are

1. Bacteria
2. Fungi
3. Viruses
4. Diatoms

Answer: 3. Viruses

Question 8. Yeast helps in the production of

1. Sugar
2. Alcohol
3. Oxygen
4. Agar

Answer: 2. Alcohol

Question 9. Pasteurisation of milk destroys its

1. Vitamins
2. Fat content
3. Bacteria
4. None of the above

Answer: 3. Bacteria

Question 10. The bread or dosa dough rises because of the action of

1. Heat
2. Growth of yeast cells
3. Kneading or grinding
4. All the above

Answer: 2. Growth of yeast cells

Question 11. Salting the food helps to preserve it by

1. Extracting water from the cells
2. Lowering its temperature
3. Increasing its acidity
4. None of the above

Answer: 1. Extracting water from the cells

Question 12. Algae are an important part of the aquatic food chain because they are

1. Decomposers
2. Producers
3. Consumers
4. None -of the above

Answer: 2. Producers

Life Under A Microscope (Microorganisms) Fill In The Blanks

Question 1. Micro-organisms can be seen with the help of a _______________.
Answer: Microscope

Question 2. The largest fungi are the _______________.
Answer: Mushrooms

Question 3. Algae can prepare their own food because they possess _______________.
Answer: Cholorphll

Question 4. Iodine is obtained from _______________.
Answer: Kelp

Question 5. Agar is obtained from _______________.
Answer: Red Alga

Question 6. The plant body in multicellular fungi is made up of _____________________
Answer: Hyphae

Question 7. Viruses are _______________ in size than bacteria.
Answer: Smaller

Question 8. The fungus that grows on bread is known as _______________
Answer: Yeast

Question 9. Bacteria generally reproduce by _______________
Answer: Binary Fission

Question 10. The virus which attacks bacteria is called _______________
Answer: Bacteriophage

Question 11. Cell walls of diatoms are a rich source of _______________
Answer: Silica

Question 12. The disease-causing micro-organisms are called _______________
Answer: Pathogens

Name the following:

Question 1. A bacterium that helps in the curdling of milk.
Answer: Lactobacillus

Question 2. A fungus used in the preparation of antibiotics.
Answer: Penicillium

Question 3. A fungus used in the bread industry.
Answer: Yeast

Question 4. The specialized cell is found in blue-green algae.
Answer: heterocyst

Question 5. A micro-organism used in the production of alcohol.
Answer: Yeast

Question 6. Two diseases are caused by bacteria, fungi, protozoa, and viruses.
Answer: Cholera, typhoid, tuberculosis, diphtheria, plague Ringworm (skin disease) and Rusts in plants Malaria, dysentery, sleeping sickness Common cold, chickenpox, smallpox, measles, polio, rabies

Question 7. The scientist who discovered pencillin’.
Answer: Alexander Flemming

Question 8. Two food items were prepared using yeast. 1 -0. A nitrogen-fixing bacterium.
Answer: Idli, Dosa, Bread

Question 11. Malaria causes micro-organisms.
Answer: Plasmodium

Question 12. Five protozoans.
Answer: Amoeba

Question 13. Two bacteria causing food poisoning.
Answer: Salmonella And Clostridium

Question 14. Two fungi cause food poisoning.
Answer: Aspergillus And Penicillium

Find the odd one out. Give reasons in support of your answer.

Question 1. Algae, fungi, protozoa, flowering plants
Answer: Flowering plants

Question 2. Chlorella, Chlamydomonas, yeast, bread mold
Answer: bread mold

Question 3. Chlorella, Spirogyra, diatoms, mushroom
Answer: Mushroom

Life Under A Microscope (Microorganisms) Match The Following Columns

Answer: 1 – r, 2 – t, 3– p, 4 – q, 5– s

Life Under A Microscope (Microorganisms) Write True Or False

Question 1. Malaria is caused by a virus.
Answer: False, It is caused by a protozoan i.e., Plasmodium

Question 2. The germ theory of disease was given by Leeuwenhoek.
Answer: False, It was Louis Pasteur who first stated the “germ theory of disease”

Question 3. The study of fungi is called mycology.
Answer: True

Question 4. Plague is caused by the bite of infected fleas.
Answer: False, Plague is a deadly infectious disease that is caused by the enterobacteria Yersinia pestis

Question 5. Agar is obtained from blue-green algae.
Answer: False, It is obtained from a red alga.

Question 6. The study of algae is called psychology.
Answer: False, Phycology is the study of algae.

Question 7. Molds are a type of fungi.
Answer: True

Question 8. Milk is preserved by pasteurization.
Answer: True

Tissues Multiple Choice Question and Answers

Question 1. Which type of epithelial tissue is found in the cells lining blood vessels?

1. Squamous epithelium
2. Cuboidal epithelium
3. Columnar epithelium
4. Ciliated epithelium

Answer: 1. Squamous epithelium

Question 2. The given illustration represents the human respiratory system. In the given illustration, the structure labeled I is lined with which type of epithelial tissue?

1. Columnar epithelium
2. Stratified squamous
3. Cuboidal epithelium
4. Simple squamous

Answer: 4. Simple squamous

Question 3. Skin is a protective body covering. Which epithelium is present in the skin?

1. Stratified squamous epithelium
2. Simple squamous epithelium
3. Columnar epithelium
4. Cuboidal epithelium

Answer: 1. Stratified squamous epithelium

Question 4. The goblet cells are specialized cells found in the intestine, which secrete mucus. Mucus acts as a lubricant. Which of the following epithelial cells is modified as goblet cells?

1. Cuboidal epithelium
2. Columnar epithelium
3. Simple squamous epithelium
4. Stratified squamous epithelium

Answer: 2. Columnar epithelium

Question 5. Ciliated columnar epithelium, which is made of cilia, is found in the lining of the

1. Respiratory tract
2. Kidney tubules
3. Oesophagus
4. Mouth

Answer: 1. Respiratory tract

Question 6. 1 epithelium is present in the internal lining of kidney tubules. 2 is present in the lining of the small intestine. The information in which alternative completes the given statements?

1. 1-columnar 2-it is also
2. 1-cuboidal 2-it is also
3. 1-cuboidal 2- 2-columnar epithelium is
4. The 1-columnar 2-cuboidal epithelium is

Answer: 3. 1-cuboidal 2- columnar epithelium is

Question 7. The linings of 1 and 2 are made of simple squamous epithelial cells. The information in which alternative completes the given statement?

1. 1-oesophagus 2-blood vessels
2. 1-kidney 2-blood vessels
3. 1-kidney tubules 2-intestines
4. 1-esophagus 2-intestines

Answer: 1. 1-esophagus 2-blood vessels

Question 8. The matrix of 1 is composed of compounds of phosphorus and calcium. The matrix of composed of 2 proteins and sugars. The information in which alternative completes the given statements?

1. 1-cartilage 2-bone is
2. 1-bone 2-bone is also
3. 1-cartilage 2-cartilage is also
4. 1-bone 2-cartilage is

Answer: 4. 1-bone 2-cartilage is

Question 9. Blood is a type of connective tissue. Which of the following statements about the functions of blood is correct?

1. It helps in transporting gases and nutrients
2. It helps in connecting bones to muscles
3. It helps in the digestion of food
4. It helps in the storage of fats

Answer: 1. It helps in transporting gases and nutrients

Question 10. In the human respiratory system, the air enters the nostrils and is transported to the lungs through the trachea. A particular connective tissue lines the trachea and prevents it from collapsing. Which connective tissue supports the trachea?

1. Adipose
2. Ligament
3. Tendon
4. Cartilage

Answer: 4. Cartilage

Question 11. The given illustrates a type of connective tissue. In the given, the structure labeled ‘X’ is composed of which types of cells?

1. Adipocytes
2. Osteocytes
3. Monocytes
4. Lymphocytes

Answer: 2. Osteocytes

Question 12. Polar bears live at the North Pole. They have a number of adaptations to enable them to live in harsh conditions. For example, they have a thick layer of blubber (fat) up to 11 cm, which helps them keep warm while swimming in cold water. Which type of tissues helps the polar bear in the given situation?

1. Areolar tissue
2. Adipose tissue
3. Cartilage tissue
4. Skeletal tissue

Answer: 2. Adipose tissue

Question 13. 1 Muscle fiber helps in the contraction and relaxation of blood vessels. It is spindle in shape and in 2 actions. The information in which alternative completes the given statements?

1. 1-smooth 2-voluntary
2. 1-skeletal 2-voluntary
3. 1-smooth 2-involuntary
4. 1-skeletal 2-involuntary

Answer: 3. 1-smooth 2-involuntary

Question 14. Smooth muscle cells are found in 1 and 2. The information in which alternative completes the given statement?

1. 1-bronchi 2-hands
2. 1-bronchi 2-iris
3. 1-heart 2-iris
4. 1-heart 2-hands

Answer: 2. 1-bronchi 2-iris

Question 15. The given illustration represents a type of muscle. The type of muscle shown in the given illustration is likely to be found in the

1. Muscles of arms
2. Muscles of legs
3. Stomach
4. Heart

Answer: 3. Stomach

Question 16. The esophagus helps in the passage of food from the mouth to the stomach. The muscle cells present in the esophagus are 1 and 2. The information in which alternative completes the given statement?

1. 1-multinucleate 2-spindle shaped
2. 1-uninucleate 2-cylindrical
3. 1-multinucleate 2-cylindrical
4. 1-uninucleate 2-spindle shaped

Answer: 4. 1-uninucleate 2-spindle shaped

Question 17. The given illustrates the types of muscle tissues. The information in which alternative correctly completes the given flowchart?

Answer: 2.

Question 18. The given illustration represents a neuron. In the given illustration, the structure labeled 1 is the

1. Nerve ending
2. Cell body
3. Dendrite
4. Axon

Answer: 4. Axon

Question 19. Which connective tissue helps in storing fats?

1. Tendon
2. Ligament
3. Adipose tissue
4. Areolar tissue

Answer: 3. Adipose tissue

Question 20. Bones and muscles are connected to each other with the help of connective tissue. Which connective tissue joins muscles to bones?

1. Tendon
2. Ligament
3. Areolar tissue
4. Adipose tissue

Answer: 1. Tendon

Question 21. The given illustrates the structure of nerve cells. All the activities of the cell are controlled by the part labeled as

1. 1
2. 2
3. 3
4. 4

Answer: 3. 3

Question 22. The given illustrates some animal tissues. Which of the following statements best describes the relationship between the cells in the given?

1. 4 transmits messages to 3.
2. 3 transports oxygen to 2.
3. 1 is synthesised by 4.
4. 3 is composed of 1.

Answer: 1. 4 transmits messages to 3.

Question 23. 1 meristem is responsible for the increase in the length of the stem and roots. 2 responsible for the increase in the girth of the stem and roots. The information in which alternative completes the given statements?

1. 1-laterl 2-apical meristem is
2. 1-apical 2-lateral meristem is
3. 1-apical 2-apical meristem is also
4. 1- lateral 2-lateral meristem is also

Answer: 2. 1-apical 2-lateral meristem is

Question 24. This illustrates the location of meristematic tissues in plants. The label ‘X’ in the given illustration is 1 meristem which helps in increasing the 2 of stem and root.

1. 1-apical 2-thickness
2. 1-apical 2-length
3. 1-lateral 2-thickness
4. 1-lateral 2-length

Answer: 3. 1-lateral 2-thickness

Question 25. Which of the following organelles is absent in the cells of the meristematic tissue?

1. Nucleus
2. Vacuoles
3. Ribosomes
4. Mitochondria

Answer: 2. Vacuoles

Question 26. In plants, meristematic tissue is of three types. The 1 helps in increasing the length of the plant while the intercalary meristem helps in the 2 growth of plants and the 3 meristem helps in increasing the thickness of plants. The information in which alternative completes the given statement?

1. 1-lateral meristem 2-longitudinal 3-apical
2. 1-apical meristem 2-equatorial 3- lateral
3. 1-lateral meristem 2-equatorial 3-apical
4. 1-apical meristem 2-longitudinal 3-lateral

Answer: 4. 1-apical meristem 2-longitudinal 3-lateral

Question 27. The given illustrates the section of a stem. In the given, which labeled structure helps in increasing the girth of a banyan tree?

1. 1
2. 2
3. 3
4. 4

Answer: 3. 3

Question 28. Which type of permanent tissue helps in storing food in plants?

1. Parenchyma
2. Collenchyma
3. Xylem
4. Phloem

Answer: 1. Parenchyma

Question 29. Simple permanent tissue is made of only one type of cells. Which type of permanent plant tissue provides buoyancy to aquatic plants?

1. Chlorenchyma
2. Sclerenchyma
3. Aerenchyma
4. Collenchyma

Answer: 3. Aerenchyma

Question 30. Permanent plant tissues are of two types: simple and complex. Which type of simple permanent tissue provides flexibility to plants?

1. Parenchyma
2. Aerenchyma
3. Collenchyma
4. Sclerenchyma

Answer: 3. Collenchyma

Question 31. Stomata are present on the epidermis of the leaf. What is the primary function of stomata?

1. Storage
2. Photosynthesis
3. Providing flexibility
4. Carrying out gaseous exchange

Answer: 4. Carrying out gaseous exchange

Question 32. The epidermis of some desert plants is covered with a thick, waxy coating of a chemical called 1 . 2 The chemical is present in the walls of cork cells. It makes them impervious to water. The information in which alternative completes the given statements?

1. 1-cutin 2-suberin is
2. 1-suberin 2-cutin is
3. 1-cutin 2-cutin is also
4. 1-suberin 2- suberin is also

Answer: 1. 1-cutin 2-suberin is

Question 33. Some fruits such as plums and apricots have a hard coving over their seeds. Almond fruit has a hard covering over its seeds because of the presence of

1. Parenchyma
2. Aerenchyma
3. Collenchyma
4. Sclerenchyma

Answer: 4. Sclerenchyma

Question 34. The alternatives in the given table can be correctly matched as

1. 1 → d, 2 → c, 3 → a, 4 → b
2. 1 → c, 2 → d, 3 → b, 4 → a
3. 1 → b, 2 → a, 3 → c, 4 → d
4. 1 → c, 2 → b, 3 → a, 4 → d

Answer: 2. 1 → c, 2 → d, 3 → b, 4 → a

Question 35. The given list presents some of the simple permanent tissues found in plants.

1. Parenchyma
2. Collenchyma
3. Sclerenchyma
4. Epidermis
5. Cork

Which of the following pairs of tissues are made up of dead cells?

1. 1 and 3
2. 2 and 4
3. 3 and 5
4. 1 and 5

Answer: 3. 3 and 5

Question 36. The given illustrates the types of plant tissues.

The information in which alternative correctly completes the given?

Answer: 2.

Question 37. 2 conducts water and minerals from the roots to different parts of the plant. This movement of water and minerals is 2. The information in which alternative completes the given statements?

1. 1-xylem 2-unidirectional
2. 1-xylem 2-bidirectional
3. 1-problem 2-undirectional
4. 1-pholem 2-bidirectional

Answer: 1. 1-xylem 2-unidirectional

Tissues Conceptive Worksheet

Question 1. The primary function of the cells of the nervous tissue is to

1. Protect the internal organs
2. Transmit stimulus
3. Transport oxygen
4. Aid in movement

Answer: 2. Transmit stimulus

Question 2. The cells of the tissue that transmit stimulus are known as. The information in which alternative completes the given statement?

1. 1-nervous 2-muscle
2. 1-muscular 2-muscles
3. 1-nervous 2-neurons
4. 1-muscular 2-neurons

Answer: 4. 1-muscular 2-neurons

Question 3. The given illustration represents a neuron. In the given illustration, the cell body of the neuron is labeled as

1. 1
2. 2
3. 3
4. 4

Answer: 3. 3

Question 4. The given illustration represents a neuron. In the given illustration, the structure labeled X is the

1. Axon
2. Dendrite
3. Cell body
4. Nerve ending

Answer: 2. Dendrite

Question 5. The given illustration represents a type of muscle fiber. The illustrated muscle fiber is present in the

1. Heart
2. Ureters
3. Iris of the eyes
4. Bronchi of the lungs

Answer: 1. Heart

Question 6. Involuntary muscles control the movement of food in the alimentary canal. The cells of involuntary muscles are

1. Cylindrical and uninucleate
2. Cylindrical and multinucleate
3. Spindle-shaped and uninucleate
4. Spindle-shaped and multinucleate

Answer: 3. Spindle-shaped and uninucleate

Question 7. The muscles of the heart are known as i muscles, whereas the muscles found in the ureters are known as ii muscles. The information in which alternative completes the given statement?

1. 1-cardiac 2-striated
2. 1-cardiac 2-smooth
3. 1-skeletal 2-smooth
4. 1-skeletal 2-striated

Answer: 2. 1-cardiac 2-smooth

Question 8. The cells of voluntary muscles are long, cylindrical, 1, and 2. The information in which alternative completes the given statement?

1. 1-branched 2-uninucleate
2. 1-branched 2-multinucleate
3. 1-unbranched 2-uninucleate
4. 1-unbranched 2 -multinucleate

Answer: 4. 1-unbranched 2 -multinucleate

Question 9. Which of the following statements about bone is incorrect?

1. It stores fats
2. It is non-flexible and strong
3. It contains calcium and phosphorus compounds
4. It anchors muscles and protects the delicate organs of the body

Answer: 1. It stores fats

Question 10. Which of the following statements about blood is incorrect?

1. It transports gases to various parts of the body
2. It forms the framework of the body
3. It has a fluid matrix
4. It contains proteins

Answer: 2. It forms the framework of the body

Question 11. The tissue found between the skin and muscles is called 1 tissue. Fats are stored in the tissue. The information in which alternative completes the given statements?

1. 1-areolar 2-cartilage
2. 1-areolar 2-adipose
3. 1-ligament 2-cartilage
4. 1-ligament 2-adipose

Answer: 2. 1-areolar 2-adipose

Question 12. Cartilage has a solid matrix that is composed of 1 and 2. The information in which alternative completes the given statement?

1. 1-calcium 2-phosphorus
2. 1-proteins 2-calcium
3. 1-sugars 2-phosphorus
4. 1-proteins 2-sugars

Answer: 4. 1-proteins 2-sugars

Question 13. Which connective tissue transports gases, nutrients, and wastes to different body parts?

1. Bone
2. Blood
3. Ligament
4. Cartilage

Answer: 2. Blood

Question 14. Ligaments that connect two 1 are a type of 2 tissue. The information in which alternative completes the given statement?

1. 1-bones 2-muscular
2. 1-muscles 2-muscular
3. 1-bones 2-connective
4. 1-muscles 2-connective

Answer: 2. 1-muscles 2-muscular

Question 15. What is the primary function of cuboidal epithelium?

1. To prevent wear and tear
2. To provide useful secretions
3. To prevent microbial infection
4. To provide mechanical support

Answer: 3. To prevent microbial infection

Question 16. The given represents a cell present in the inner lining of the gut. Which epithelial tissue is represented in the given?

1. Stratified squamous epithelium
2. Simple squamous epithelium
3. Columnar epithelium
4. Cuboidal epithelium

Answer: 3. Columnar epithelium

Question 17. Which illustration represents stratified squamous epithelium?

 

Answer: 4.

Question 18. Which epithelial tissue forms the lining of the mouth?

1. Stratified squamous
2. Simple squamous
3. Columnar
4. Cuboidal

Answer: 4. Cuboidal

Question 19. The linings of 1 and the ducts of salivary glands are formed by 2 epithelium, which provides mechanical support to these structures. The information in which alternative completes the given statement?

1. 1-kidney tubules 2-tubules
2. 1-lung alveoli 2-columnar
3. 1-kidney tubules 2-cuboidal
4. 1-lung alveoli 2-cuboidal

Answer: 3. 1-kidney tubules 2-cuboidal

Question 20. Which type of epithelium is present in the inner lining of the intestine?

1. Stratified squamous
2. Simple squamous
3. Columnar
4. Cuboidal

Answer: 3. Columnar

Question 21. Which type of epithelium is illustrated in the given?

1. Simple squamous
2. Stratified squamous
3. Cuboidal epithelium
4. Columnar epithelium

Answer: 2. Stratified squamous

Question 22. Simple squamous epithelial cells are extremely 1 and 2. The information in which alternative completes the given statement?

1. 1-thick 2-columnar
2. 1-thick 2-flat
3. 1-thin 2-columnar
4. 1-thin 2-flat

Answer: 4. 1-thin 2-flat

Question 23. The xylem is a complex permanent tissue, which is made of four different components. The tracheids and vessels are made up of dead cells and help in the vertical transportation of water and minerals. Which type of cells make up the tracheids and vessels?

1. Aerenchyma
2. Collenchyma
3. Chlorenchyma
4. Sclerenchyma

Answer: 4. Sclerenchyma

Question 24. In an experiment to study parasitism in rice plants, it was found that a species of fungi was able to penetrate the stem of rice plants. The fungi produced chemicals that degraded

1. Cellulose
2. Cuticle
3. Suberin
4. Lignin

Answer: 2. Cuticle

Question 25. Piyush cut a branch of a dicot plant and put it in blue ink. After 2 hours, he observed that the leaves as well as the stem had turned blue. The parts of the stem and leaf respectively which have turned blue first are

1. 1 and 3
2. 2 and 3
3. 1 and 4
4. 2 and 1

Answer: 1. 1 and 3

Question 26. Which tissue constitutes the husk of a coconut?

1. Aerenchyma
2. Collenchyma
3. Sclerenchyma
4. Chlorenchyma

Answer: 3. Sclerenchyma

Question 27. Collenchyma consists of i cells that have ii intercellular spaces between them. The information in which alternative completes the given statement?

1. 1-dead 2-no
2. 1-dead 2-small
3. 1-living 2-no
4. 1-living 2-small

Answer: 4. 1-living 2-small

Question 28. ____1_____ is a type of complex permanent tissue that helps in the bi-directional transportation of ____2_____ in plants. The information in which alternative completes the given statement?

1. 1-pholem 2-food
2. 1-pholem 2-water
3. 1-xylem 2-food
4. 1-xylem 2-water

Answer: 1. 1-pholem 2-food

Question 29. In plants, water and minerals are primarily transported through

1. Tracheids and vessels
2. Tracheids and sieve tubes
3. Vessels and companion cells
4. Sieve tubes and companion cells

Answer: 1. Tracheids and vessels

Question 30. Phloem is a type of complex permanent tissue that helps in the translocation of food. Which component of the phloem consists of dead cells?

1. Sieve tube
2. Phloem fiber
3. Companion cell
4. Phloem parenchyma

Answer: 2. Phloem fibre

Question 31. Sieve tubes and companion cells are components of

1. Xylem
2. Phloem
3. Collenchyma
4. Parenchyma

Answer: 2. Phloem

Question 32. In the xylem, 1 helps in the sideways conduction of water and 2 plays a supportive role. The information in which alternative completes the given statement?

1. 1-vessel 2-tracheids
2. 1-tracheids 2-parenchyma
3. 1-parenchyma 2-fibers
4. 1-fibers 2-vessels

Answer: 3. 1-tracheids 2-parenchyma

Question 33. The structural components that conduct water and nutrients vertically in the xylem are 1 and 2. The information in which alternative completes the given statement?

1. 1-companion cells 2-tracheids
2. 1-companion cells 2-sieve tubes
3. 1-vessels 2-sieve tubes
4. 1-vessels 2-tracheids

Answer: 4. 1-vessels 2-tracheids

Question 34. The given represents the different types of complex permanent tissue in plants.

Answer: 3.

Question 35. The flow of food material in the phloem is i and the cells of ii aid in this transport. The information in which alternative completes the given statement?

Answer: 1.

Tissues Summative Worksheet MCQs

Question 1. Which of the following is a protective tissue?

1. Muscular tissue
2. Connective tissue
3. Epithelial tissue
4. Nervous tissue

Answer: 3. Epithelial tissue

Question 2. The tissue that forms the internal lining of organs is

1. Nervous tissue
2. Epithelial tissue
3. Connective tissue
4. A muscle

Answer: 2. Epithelial tissue

Question 3. Nervous tissue consists of

1. Nerve cells
2. Tendons
3. Cyton
4. Lymph

Answer: 1. Nerve cells

Question 4. Short branching structures arising from the cell body of a neuron are called

1. Axons
2. Cyton
3. Dendrites
4. Lymph

Answer: 3. Dendrites

Question 5. The muscles that take part in breathing movements are

1. Involuntary muscles
2. Cardiac muscles
3. Voluntary muscles
4. All the above

Answer: 1. Involuntary muscles

Question 6. Muscles found in the heart are

1. Voluntary muscles
2. Cardiac muscles
3. Involuntary muscles
4. All the above

Answer: 2. Cardiac muscles

Question 7. Tissues found in growing regions are

1. Meristematic tissues
2. Complex tissues
3. Simple tissues
4. Permanent tissues

Answer: 1. Meristematic tissues

Question 8. Meristematic tissues have

1. Small, thin-walled cells rich in cytoplasm
2. Small, thick-walled cells
3. Dead cells
4. Cells that can divide for a short period

Answer: 1. Small, thin-walled cells rich in cytoplasm

Question 9. Sclerenchyma is a

1. Thick-walled tissue consisting of dead cells
2. Thick-walled tissue consisting of living cells
3. Thin-walled, living cells
4. None of the above

Answer: 1. Thick-walled tissue consisting of dead cells

Question 10. Vascular tissues in a plant are

1. Xylem and phloem
2. Xylem, phloem, and epidermis
3. Only xylem
4. Only phloem

Answer: 1. Xylem and phloem

Tissues Fill In The Blanks

Question 1. About two-thirds of the body weight is made up of ____________ tissue.
Answer: Muscular tissues

Question 2. Bone is a type of ____________ tissue.
Answer: Skeletal

Question 3. Nerve cells are also called ____________
Answer: Neurons

Question 4. Nerve cells are found in ____________ and ____________.
Answer: Brain, spinal cord

Question 5. ____________ muscles are found in the walls of the stomach and
intestine.
Answer: Smooth (or unstriated)

Question 6. Cells are living, elongated, and thickened at the corners in
____________ tissue.
Answer: Muscular tissue

Question 7. Xylem and phloem constitute ____________ tissue in a plant body.
Answer: Vascular tissue

Question 8. Water moves upward inside the plant body through ____________ tissue.
Answer: Xylem

Question 9. The movement of food material in the plant body takes place through
____________ tissue.
Answer: Phloem

Question 10. Permanent tissues arise from ____________ tissues.
Answer: Meristematic

Question 11. Cells of ____________ tissue bring about an increase in plant length.
Answer: Meristematic

Find The Odd One Out, Giving Reasons

Question 1. Cyton, dendrite, plasma, axon
Answer: Plasma

Question 2. Bone, cartilage, tendon, blood
Answer: Blood

Question 3. Bone, epithelium, tendon, cartilage
Answer: Epithelium

Question 4. Xylem, collenchyma, parenchyma, sclerenchyma
Answer: Xylem

Question 5. Vessels, companion cells, sieve tubes, collenchyma.
Answer: Collenchyma

Tissues Following Write True Or False

Question 1. Meristematic cells are small and thin-walled.
Answer: True

Question 2. Cells of the permanent tissues lack the property of division.
Answer: True

Question 3. Permanent tissue is an immature tissue.
Answer: False

Question 4. Stomata are present in the ground tissue of the leaf.
Answer: False

Question 5. Xylem tissue is made of sieve tubes.
Answer: False

Question 6. Epithelial tissue is a protective tissue.
Answer: True

Question 7. Muscular tissues show the properties of contraction and expansion.
Answer: True

Question 8. Cyton and axons are the parts of a nerve cell.
Answer: True

Question 9. The fluid part of the blood is called plasma.
Answer: True

Question 10. Sclerenchyma consists of thick-walled dead cells.
Answer: True

Question 11. The phloem is a complex tissue.
Answer: True

Organization In The Living Things Multiple Choice Question and Answers

Question 1. The cells are made of

1. Organelles
2. Molecules
3. Atoms
4. All

Answer: 4. All

Question 2. The molecule of life is

1. Water
2. Oxygen
3. RNA
4. DNA

Answer: 4. DNA

Question 3. Which of the following is true for the molecular level of organisation?

1. Atoms → Molecules → Cells → Compounds → Organelles
2. Cells → Organelles → Compounds → Molecules → Atoms
3. Atoms → Molecules → Compounds → Organelles → Cells
4. Molecules → Atoms → Compounds → Organelles → Cells

Answer: 3. Atoms → Molecules → Compounds → Organelles → Cells

Question 4. The the smallest living unit, and is capable of performing all the functions of life is

1. Cell
2. Tissue
3. Organ
4. Organ system

Answer: 1. Cell

Question 5. Statement – 1: In unicellular organisms like Amoeba, Paramecium and bacteria, all the functions are carried out by a single cell. Statement 2: In multicellular organisms, each cell has the ability to perform all the activities.

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 1. Statement – 1 is true, Statement – 2 is false.

Question 6. In a tissue, cells

1. Have the same shape
2. Perform similar function
3. Both
4. None

Answer: 2. Perform a similar function

Question 7. Which of the plant tissues is involved in protection?

1. Epidermal tissue
2. Vascular tissue
3. Ground tissue
4. All

Answer: 1. Epidermal tissue

Question 8. The function of vascular bundles is

1. Protection
2. Storage
3. Supply of water
4. Supply of food

Answer: 2. Supply of water

Question 9. The protective animal tissue is

1. Epithelial tissue
2. Connective tissue
3. Nervous tissue
4. All

Answer: 1. Epithelial tissue

Question 11. The largest organ of our body is

1. Stomach
2. Lungs
3. Heart
4. Skin

Answer: 4. Skin

Question 12. The internal organs of our body are

1. Heart
2. Ear
3. Lungs
4. Nose
5. Liver
6. Legs

Choose the correct option 

1. 1, 2, 3
2. 2, 3, 4
3. 1, 3, 5
4. All

Answer: 4. All

Question 13. Which of the following is an organ system in plants?

1. Root system
2. Shoot system
3. Digestive system
4. Nervous system

Answer: 1. Root system

Question 14. Which of the following is more complex?

1. Population
2. Biotic community
3. Ecosystem
4. Biosphere

Answer: 4. Biosphere

Question 15. The next higher level of organisation above the individual level is

1. Population
2. Biotic community
3. Ecosystem
4. Biosphere

Answer: 1. Population

Question 16. Statement – 1: Individuals of populations of one species can breed among themselves only Statement – 2: They do not breed with individuals of other species

1. Statement – 1 is true, Statement – 2 is false.
2. Statement – 1 is false, Statement – 2 is true.
3. Both statements are true.
4. Both statements are false.

Answer: 3. Both statements are true.

Question 17. The next higher level of organisation above the population level is

1. Population
2. Biotic community
3. Ecosystem
4. Biosphere

Answer: 2. Biotic community

Question 18. The biotic community in an area interacts with the non-living physical environment, and the two (i.e., the biotic community and the abiotic environment) together constitute the next higher level of organisation. This is termed as

1. Population
2. Biotic community
3. Ecosystem
4. Biosphere

Answer: 3. Ecosystem

Question 19.  Match The Columns 

1. 1-p,r; 2-q,s
2. 1-p, q; 2-r,s
3. 1- q,s; 2-p,r
4. 1- p,s; 2-q,r

Answer: 3. 1- q,s; 2-p,r

Question 20. Which of the following is the component of the biosphere?

1. Hydrosphere
2. Lithosphere
3. Atmosphere
4. All

Answer: 4. All

Question 21. Which of the following components of a pond ecosystem is biotic in nature?

1. Detritus
2. Oxygen
3. Algae
4. Water

Answer: 3. Algae

Question 22. Which of the following factors are biotic components of the ecosystem?

1. Soils
2. Fungi
3. Rocks
4. Minerals

Answer: 3. Rocks

Question 23. 1 and 2 are the abiotic factors of the ecosystem. The information in which row completes the given statement?

1. 1- Sunlight 2- Consumers
2. 1- Wind 2- Decomposers
3. 1- Water 2-Soil
4. 1-Producers 2-Scavengers

Answer: 3. 1- Water 2-Soil

Question 24. The given diagram illustrates the human digestive system. Which part represents the stomach?

1. 1
2. 2
3. 3
4. 4

Answer: 1. 1

Question 25. The given diagram illustrates the human digestive system. Which part represents the small intestine?

1. 1
2. 2
3. 3
4. 4

Answer: 2. 2

Question 26. Oesophagus is the part of

1. Digestive system
2. Reproductive system
3. Excretory system
4. Nervous system

Answer: 1. Digestive system

Question 27. The topmost part of the digestive system is

1. Mouth
2. Small intestine
3. Oesophagus
4. Anus

Answer: 1. Mouth

Question 28. The food pipe is

1. Stomach
2. small intestine
3. Oesophagus
4. Anus

Answer: 3. Oesophagus

Question 29. Which of the following statements about cellular respiration is correct?

1. Oxygen is released during cellular respiration.
2. Cellular respiration leads to the formation of starch.
3. Cellular respiration leads to the formation of glucose.
4. Carbon dioxide is released during cellular respiration.

Answer: 4. Carbon dioxide is released during cellular respiration.

Question 31. The given diagram illustrates the human respiratory system. Identify A and B.

1. A-Lungs, B- Trachea
2. A-Trachea, B- Lungs
3. A-Trachea, B- Bronchi
4. A-Bronchi, B- Trachea

Answer: 2. 1-Trachea,2- Lungs

Question 32. Circulatory system includes

1. Heart
2. Blood
3. Blood vessels
4. All

Answer: 4. All

Question 33. The brain is the part of

1. Digestive system
2. Circulatory system
3. Excretory system
4. Nervous system

Answer: 4. Nervous system

Question 34. Nervous system includes

1. Brain
2. Spinal cord
3. Heart
4. Ear
5. Liver
6. Pancreas

Choose the correct option

1. 1, 3, 5
2. 2, 4, 6
3. 1, 2, 4
4. 1, 3, 4

Answer: 3. 1, 2, 4

Question 35. The given diagram illustrates the human nervous system.
Identify the spinal cord in the diagram.

1. 1
2. 2
3. 3
4. 4

Answer: 3. 3

Question 36. The given illustration represents the human excretory system.
In the given illustration, the structure labelled X represents

1. Kidney
2. Ureter
3. Urinary bladder
4. Urethra

Answer: 3. Urinary bladder

Question 37. What is the primary excretory product of humans?

1. Ammonia
2. Urea
3. Glucose
4. Starch

Answer: 2. Urea

Question 38. Which of the following functions is not performed by kidneys?

1. Removal of body toxins
2. Supplying oxygen to the body
3. Maintaining body salt balance
4. Filtering of wastes from the blood

Answer: 4. Filtering of wastes from the blood

Question 39. This process of producing young ones of its own kind is called

1. Digestion
2. Reproduction
3. Excretion
4. Circulation

Answer: 2. Reproduction

Question 40. The male reproductive cells are

1. Eggs
2. Ova
3. Sperms
4. All

Answer: 3. Sperms

Question 41. The female reproductive organ is

1. Testis
2. Ovary
3. Both
4. None

Answer: 2. Ovary

Question 42. The skeletal system provides shape and rigidity to the body. It also helps in protecting a number of internal organs. Which of the following internal organs is not protected by the ribcage?

1. Heart
2. Liver
3. Lungs
4. Stomach

Answer: 4. Stomach

Question 43. Which of the following statements about constituents of the rib cage is correct?

1. The rib cage consists of chest bones only.
2. The rib cage protects the stomach, lungs, and heart.
3. The vertebral column alone comprises the rib cage.
4. Twelve ribs and a backbone constitute a rib cage.

Answer: 4. Twelve ribs and a backbone constitute a rib cage.

Question 44. The given represents the human skeletal system. In the given, label X represents the

1. Skull
2. Rib cage
3. Shoulder bones
4. Pelvic bones

Answer: 4. Pelvic bones

Question 45. The given represents the human skeletal system. In the given label X represents the

1. Skull
2. Rib cage
3. Shoulder bones
4. Pelvic bones

Answer: 1. Skull

Question 46. The given diagram illustrates the human skeleton. The structure labelled I in the given diagram illustrates the

1. Ribs
2. Skull
3. Backbone
4. Pelvic bones

Answer: 2. Skull

Question 47. The given diagram illustrates the human skeleton. Pelvic bones in the given diagram are labelled as

1. 1
2. 2
3. 3
4. 4

Answer: 4. 4

Question 48. Match the following 

1. 1 → 1, 2 → 2, 3 → 3
2. 1 → 2, 2 → 1, 3 → 3
3. 1 → 2, 2 → 3, 3 → 1
4. 1 → 3, 2 → 1, 3 → 2

Answer: 2. 1 → 2, 2 → 1, 3 → 3

Question 49. The given illustrates two arm muscles X and Y at two positions 1 and 2. During the transition from 1 to 2,

1. Only the relaxation of muscle Y takes place
2. Only the contraction of muscle X takes place
3. Relaxation of both muscles X and Y takes place
4. Contraction of both muscles X and Y takes place

Answer: 1. Only the relaxation of muscle Y takes place

Organization In The Living Things Conceptive Worksheet

Question 1. All organisms are made of

1. Cells
2. Tissues
3. Organs
4. Organ systems

Answer: 1. Cells

Question 2. The important compound, responsible for the transfer of characters from parents to children

1. Carbohydrates
2. Proteins
3. Fats
4. DNA

Answer: 2. DNA

Question 3. The lowest level of a cellular organisation is

1. Cell
2. Tissue
3. Organ
4. Organ system

Answer: 1. Cell

Question 4. The cell teams are called

1. Atoms
2. Molecules
3. Tissues
4. Organs

Answer: 3. Tissues

Question 5. Tissues in plants include

1. Epidermal tissue
2. Vascular tissue
3. Ground tissue
4. Both 1,2 and 3

Answer: 4. 1,2 and 3

Question 6. The function of the cortex is

1. Protection
2. Storage
3. Supply of water
4. Supply of food

Answer: 2. Storage

Question 7. Tissues combine to form

1. Organs
2. Cells
3. Organ system
4. None

Answer: 1. Organs

Question 8. Which of the following represents the organs of the human body?

1. Stomach
2. Lungs
3. Heart
4. All

Answer: All

Question 9. The external organs of our body are

1. Heart
2. Ear
3. Lungs
4. Nose
5. Liver
6. Legs

Choose The correct option

1. 1, 2, 3
2. 2, 3, 4
3. 1, 3, 5
4. 2, 4, 6

Answer: 4. 2, 4, 6

Question 10. Digestive system represents

1. A cell
2. A tissue
3. An organ
4. An organ system

Answer: 4. An organ system

Question 11. All the individuals of a single species existing in a given locality or area constitute a

1. Population
2. Biotic community
3. Ecosystem
4. Biosphere

Answer: 1. Population

Question 12. The populations of different species occurring in a locality constitute the next higher level of organisation called the

1. Population
2. Biotic community
3. Ecosystem
4. Biosphere

Answer: 2. Biotic community

Question 13. The community has populations of ____ species.

1. Same
2. Different
3. Both
4. None

Answer: 2. Different

Question 14. Which of the following is an example of an ecosystem?

1. Forest
2. Desert
3. Ponds
4. All

Answer: 4. All

Question 15. The highest level of organisation in the living world is

1. Population
2. Biotic community
3. Ecosystem
4. Biosphere

Answer: 4. Biosphere

Question 16. Consumers are organisms that are dependent on other organisms for food. Which of the following organisms is not a consumer?

1. Cow
2. Lion
3. Plant
4. Rabbit

Answer: 3. Plant

Question 17. The following food chain exists in an enclosed forest region. Plants → Rabbit → Fox Which of these is a consequence of the excessive hunting of the rabbit population by humans?

1. The plant population remains unaffected
2. The food chain remains unaffected
3. The fox population decreases
4. The fox population increases

Answer: 3. The fox population decreases

Question 18. The given diagram illustrates the human digestive system.
Which part represents the large intestine?

1. 1
2. 2
3. 3
4. 4

Answer: 3. 3

Question 19. The given diagram illustrates the human digestive system.
Which part represents the caecum?

1. 1
2. 2
3. 3
4. 4

Answer: 4. 4

Question 20. The lowest part of the digestive system is

1. Stomach
2. Small intestine
3. Oesophagus
4. Anus

Answer: 4. Anus

Question 21. Cellular respiration is a process in which food is broken down in a cell and converted into energy. Respiration is an example of

1. A catabolic process
2. Transportation of ions
3. Anabolic process
4. Excretion of ions

Answer: 1. A catabolic process

Question 22. The given diagram illustrates the human respiratory system. Identify bronchi in the diagram.

1. 1
2. 2
3. 3
4. 4

Answer: 4. 4

Question 23. In general, the blood vessels that carry impure blood is

1. Artery
2. Vein
3. Both
4. None

Answer: 2. vein

Question 24. Which of the following organ systems transports gases and materials throughout the body?

1. Digestive system
2. Circulatory system
3. Excretory system
4. Nervous system

Answer: 2. Circulatory system

Question 25. The spinal cord is the part of

1. Digestive system
2. Circulatory system
3. Excretory system
4. Nervous system

Answer: 2. Circulatory system

Question 26. The given diagram illustrates the human nervous system.
Identify I in the diagram.

1. Brain
2. Nerves
3. Spinal cord
4. None

Answer: 1. Brain

Question 27. The given illustration represents the human excretory system. In the given illustration, the structure labelled X represents

1. Kidney
2. Ureter
3. Bladder
4. Urethra

Answer: 2. Ureter

Question 28. The human excretory system is made up of kidneys, ureters, urinary bladder, and urethra. The structure that helps in the storage of urine is

1. Kidney
2. Ureter
3. Bladder
4. Urethra

Answer: 3. Bladder

Question 29. The kidneys are present in most vertebrate animals. The kidneys are important because they

1. Remove body waste
2. Digest food material
3. Pump blood to all body parts
4. Control different body movements

Answer: 1. Remove body waste

Question 30. The female reproductive cells are

1. Eggs
2. Ova
3. Sperms
4. All

Answer: 1. Eggs

Question 31. The male reproductive organ is

1. Testis
2. Ovary
3. Both
4. None

Answer: 1. Testis

Question 32. What is the long, hard structure that starts from the neck to the lower back of the body known as?

1. Backbone
2. Cartilage
3. Pelvic bone
4. Shoulder bone

Answer: 1. Backbone

Question 33. The given diagram illustrates a part of the human skeletal system. Which of the following functions is performed by the illustrated image?

1. Breathing
2. Holding
3. Running
4. Sitting

Answer: 2. Holding

Question 34. The given represents the human skeletal system. In the given, the shoulder bones are labelled as

1. 1
2. 2
3. 3
4. 4

Answer: 4. 4

Question 35. The given represents a part of the human skeletal system.
The given represents the

1. Bones of the hand
2. Bones of the feet
3. Rib cage
4. Backbone

Answer: 1. Bones of the hand

Question 36. The illustrated structure belongs to the

1. Skeletal system
2. Nervous system
3. Muscular system
4. Circulatory system

Answer: 1. Skeletal system

Question 37. The given represents the human skeletal system. In the given, label X represents the

1. Pelvic bones
2. Skull
3. Rib cage
4. Shoulder bones

Answer: 4. Shoulder bones

Question 38. The rib cage is a part of the skeletal system. It performs the function of protecting the

1. Heart and the lungs
2. Kidney and the lungs
3. Heart and the stomach
4. Kidney and the stomach

Answer: 1. Heart and the lungs

Question 39. The given represents the human skeletal system. In the given, the pelvic bones are labelled as

1. 1
2. 2
3. 3
4. 4

Answer: 2. 2

Question 40. The given diagram illustrates the human skeleton. Label I in the given diagram depicts the

1. Ribs
2. Skull
3. Backbone
4. Pelvic bones

Answer: 1. Ribs

Question 41. The given represents the human skeletal system. In the given, label X represents the

1. Rib cage
2. Skull
3. Shoulder bones
4. Pelvic bones

Answer: 1. Rib cage

Question 42. Which of the following statements about muscles is incorrect?

1. They contract to move a bone in a particular direction.
2. They contract to bring a bone to its original position.
3. They can only push the bone.
4. They can only pull the bone.

Answer: 3. They can only push the bone.

Question 43. Muscles are necessary for the movement of bones. Which of the following statements is correct regarding the contraction of muscles?

1. Bones can move in the absence of muscles.
2. Muscles become longer and thinner on contraction.
3. Muscles become shorter and thicker on contraction.
4. Bones can move in the presence of only one muscle.

Answer: 3. Muscles become shorter and thicker on contraction.

Question 44. Humans perform a variety of activities, like running, walking, playing, lifting weights etc. They are able to do so because of organ system X. The organ system X referred to in the preamble is the

1. Muscular system
2. Digestive system
3. Excretory system
4. Circulatory system

Answer: 1. Muscular system

Organization In The Living Things Summative Worksheet MCQs

Question 1. The lowest level of cellular organisation is a

1. Cell
2. Organism
3. Tissue
4. Organelle

Answer: 1. Cell

Question 2. A group of similar cells which perform a particular function is called a

1. Organism
2. Tissue
3. Organelle
4. Organs

Answer: 2. Tissue

Question 3. Two organ systems in plants are

1. Roots and stern
2. The root system and shoot system
3. Stem and branches
4. All the above

Answer: 3. Stem and branches

Question 4. A level of organisation above the population is

1. Organism
2. Ecosystem
3. Community
4. Biosphere

Answer: 3. Community

Question 5. Biosphere consists of

1. Atmosphere, lithosphere and hydrosphere
2. Atmosphere and hydrosphere
3. Ecosystem only
4. Abiotic and biotic components

Answer: 4. Abiotic and biotic components

Question 6. The biotic community consists of

1. Only animals
2. All organisms
3. Only plants
4. Organisms and the environment

Answer: 4. Organisms and the environment

Question 7. The trachea is a part of

1. Digestive system
2. Excretory system
3. Respiratory system
4. Circulatory system

Question 8. Bones and cartilages are a part of

1. Skeletal system
2. Respiratory system
3. Muscular system
4. Excretory system

Answer: 1. Skeletal system

Organization In The Living Things Fill In The Blanks

Question 1. The higher levels of organisation in a multicellular organism are ________, ________, ________, ________ and ________.
Answer: Population, Biotic community, Ecosystem, and Biosphere.

Question 2. A group of cells that are similar in size and shape, and do the same job is called a __________.
Answer: Tissues

Question 3. Different tissues that work together form _____________.
Answer: Organs

Question 4. An organ used to get rid of the wastes in our body is _____________.
Answer: Kidney

Question 5. In plants, the organ that makes food is the _____________.
Answer: Leaf

Question 6. Individuals of the same kind of organisms form a _____________.
Answer: Species

Differentiate between the following:

1. Organism and Population
2. Population and Community
3. Ecosystem and Biosphere
4. Tissues and Organs

Classify the following as cells, tissues, organs, organ systems or organisms:

Question 1. Chlamydomonas
Answer: Organism

Question 2. Leaf
Answer: Organ

Question 3. Stomach
Answer: Organ

Question 4. Stem
Answer: Organ

Question 5. Shoot system
Answer: Organ system

Question 6. Skin
Answer: Tissues

Question 7. Amoeba
Answer: Organism

Question 8. Blood
Answer: Tissue

Question 9. Flower
Answer: Organ

Question 10. Bone
Answer: Tissue

Name the main organs of the following systems:

Question 1. Digestive system
Answer: Stomach

Question 2. Respiratory system
Answer: Lungs

Question 3. Circulatory system
Answer: Heart

Question 4. Nervous system
Answer: Brain

Question 5. Excretory system
Answer: Kidneys

Question 6. Skeletal system
Answer: Skull

Organization In The Living Write True Or False

Question 1. Plants have organs.
Answer: True

Question 2. A root is an example of an organ.
Answer: True

Question 3. Cells are made of tissues.
Answer: False

Question 4. An organ is made of tissues.
Answer: True

Question 5. One-celled plants and animals have organs.
Answer: False

Question 6. The heart is an organ.
Answer: True

Question 7. The stomach is a tissue.
Answer: False

Question 8. The heart is an organ of digestion.
Answer: False

Question 9. Different cells that join up and work together are called organs.
Answer: False

Question 10. Tissues alone cannot do the same jobs in the body.
Answer: False

Question 11. Tissues, organs and organ systems are made of cells.
Answer: True

Question 12. Different organ systems help each other.
Answer: True

Question 13. All members of a population compete for similar resources.
Answer: True

Question 14. Complexity goes on increasing as we move from lower levels to higher levels of organisation.
Answer: True

Basic Biology Formative Worksheet

Question 1. Which type of cells did Robert Hooke observe under the microscope?

1. Cork cells
2. Leaf cells
3. Muscle cells
4. Liver cells

Answer: 1. Cork cells

Question 2. Robert Hooke studied the cork cells during his famous discovery of plant cells. The term ‘cell’ was coined by him. Which cell structure was observed by Robert Hooke when he studied cork cells?

1. Nucleus
2. Cell wall
3. Cytoplasm
4. Cell membrane

Answer: 2. Cell wall

Question 3. Which of the following alternatives describes the appearance of cells viewed by Robert Hooke for the first time?

1. Honey comb-like structures
2. Irregular mobile structures
3. Elongated structures
4. Spherical structures

Answer: 1. Honeycomb-like structures

Question 4. Cells form the basic units of life and are similar in structure in different living organisms. For example, cells present in the human brain, plant leaves, and the intestine of a cow are similar. The given cells are similar in structure due to the presence of

1. Nucleus, cytoplasm, and cell wall
2. Nucleus, cell wall, and cell membrane
3. Nucleus, cell membrane, and cytoplasm
4. Cytoplasm, cell wall, and cell membrane

Answer: 3. Nucleus, cell membrane, and cytoplasm

Question 5. Which of the following corresponds to the properties of a cell?

1. The cell is the smallest living unit of life.
2. It is so small that it is not visible to the naked eye.
3. The shape of the cell varies in different organisms and within an organism.
4. All

Answer: 4. All

Question 6. Which of the following corresponds to the principles of a cell theory?

1. All living organisms are composed of one or more cells.
2. Cells are the basic unit of structure and function in an organism.
3. All cells come only from the reproduction of pre-existing cells.
4. All

Answer: 4. All

Question 7. Which cell organelle controls the movement of particles in and out of the cell?

1. Cell membrane
2. Mitochondria
3. Lysosomes
4. Cytoplasm

Answer: 1. Cell membrane

Question 8. The flow of molecules in and out of a cell is regulated by

1. Cell membrane
2. Mitochondria
3. Golgi body
4. Nucleus

Answer: 1. Cell membrane

Question 9. Which of the following statements about cell membranes is correct?

1. It controls all the activities of the cell.
2. It carries out the process of photosynthesis.
3. It stores the waste material produced by the cell.
4. It regulates the movement of substances in and out of the cell.

Answer: 4. It controls all the activities of the cell.

Question 10. Which of the following functions holds true for the plasma membrane?

1. It protects and gives structural support to cells
2. It contains the genetic material
3. It regulates substances moving in and out of cells
4. It maintains the shape of cells

Answer: 3. It regulates substances moving in and out of cells

Question 11. Cytoplasm occupies less space in plant cells because of the

1. Presence of cell wall
2. Presence of vacuoles
3. Absence of cell wall
4. Absence of vacuoles

Answer: 2. Presence of vacuoles

Question 12. Which of the following statements about plasma membrane is incorrect?

1. It is porous in nature.
2. It is present in all cells.
3. It allows the movement of substances in and out of cells.
4. It takes part in the transfer of characters from parents to offspring.

Answer: 1. It is porous in nature.

Question 13. Which arrow diagram correctly illustrates the arrangement of cell organelles starting from the outermost layer of plant cells?

1. Plasma membrane → cell wall → cytoplasm → nucleus
2. Cell wall → plasma membrane → cytoplasm → nucleus
3. Cell wall → cytoplasm → plasma membrane → nucleus
4. Plasma membrane → cytoplasm → cell wall → nucleus

Answer: 2. Cell wall → plasma membrane → cytoplasm → nucleus

Question 14. The nucleus of a cell is a membrane-bound organelle that
contains the genetic material i.e., DNA. The cellular material present outside the nucleus is called cytoplasm. Which membrane separates the components of the nucleus and cytoplasm?

1. Protoplasm
2. Nucleolus
3. Plasma membrane
4. Nuclear envelope

Answer: 4. Nuclear envelope

Question 15. Which of the following statements about the nucleus is true?

1. It allows the movement of substances both into and out of the cell.
2. It holds information that is transferred from parents to offspring.
3. It carries out the process of photosynthesis.
4. It protects the cell from external injury.

Answer: 2. It holds information that is transferred from parents to offspring.

Question 16. Prokaryotes are distinguished from eukaryotes by the

1. Presence of cell wall
2. Absence of nucleus
3. Presence of ribosomes
4. Absence of chloroplasts

Answer: 2. Absence of nucleus

Question 17. The thread-like structures present inside the nucleus that are visible only during cell division are known as

1. Genes
2. Plastids
3. Vacuoles
4. Chromosomes

Answer: 4. Chromosomes

Question 18. A certain cell organelle controls various activities of the cell such as protein synthesis. It also contains the hereditary information of an organism. The described cell organelle is the

1. Nucleus
2. Ribosome
3. Chloroplast
4. Mitochondrion

Answer: 1. Nucleus

Question 19. The powerhouse of a cell is

1. Nucleus
2. Cell wall
3. Lysosome
4. Mitochondria

Answer: 4. Mitochondria

Question 20. The sites of production of ATP in mitochondria are

1. Matrix
2. Lipid membranes
3. Cristae
4. Both 1 and 2

Answer: 3. Cristae

Question 21. Which of the following is the function of mitochondria?

1. They produce the energy required for cells in the form of ATP.
2. They also regulate the free calcium ion concentration in the cytosol.
3. They participate in apoptosis or programmed cell death.
4. All the above

Answer: 4. They also regulate the free calcium ion concentration in the cytosol.

Question 22. Which cell organelle performs the following functions?

1. To provide internal support to the cells
2. To provide transportation pathways within the cells
   1. Chloroplast
   2. Endoplasmic reticulum
3. Nucleus
4. Ribosomes

Answer: 2. To provide transportation pathway within the cells

1. Chloroplast
2. Endoplasmic reticulum

Question 23. RER has _____ on its surface.

1. Proteins
2. Lysosomes
3. Ribosomes
4. Chlorophyll

Answer: 3. Ribosomes

Question 24. The given diagram illustrates a plant cell. Which labelled structure helps in the process of photosynthesis?

1. 1
2. 2
3. 3
4. 4

Answer: 4. 3

Question 25. Chloroplasts are green-coloured plastids found in the leaves of plants. They perform the function of

1. Controlling the activities of the cell
2. Carrying out photosynthesis
3. Storing cellular waste
4. Protecting the cell

Answer: 2. Carrying out photosynthesis

Question 26. Chlorophyll performs the function of

1. Absorbing water in leaves
2. Trapping light energy in leaves
3. Releasing carbon dioxide into the atmosphere
4. Releasing manufactured food into the atmosphere

Answer: 2. Trapping light energy in leaves

Question 27. Which of the following structures is present as “many in number” in a plant cell?

1. Nucleus
2. Vacuole
3. Cytoplasm
4. Chloroplast

Answer: 4. Chloroplast

Question 28. Which cell organelle produces glucose?

1. Vacuole
2. Lysosome
3. Chloroplast
4. Mitochondrion

Answer: 3. Chloroplast

Question 29. Who discovered the cell organelle that is involved in the transport of lipids within the cell?

1. Robert Brown
2. Rudolf Virchow
3. Camillo Golgi
4. Schwann

Answer: 3. Camillo Golgi

Question 30. Identify the cell organelle with the following functions.

1. It involves the transport of lipids in cells.
2. It involves the formation of lysosomes.
3. It is involved in the synthesis of cell walls in the plant cell.

Choose the following option 

1. Mitochondria
2. ER
3. Golgi apparatus
4. Plastids

Answer: 4. Plastids

Question 31. Suicidal bags of a cell are

1. Ribosomes
2. Lysosomes
3. Chloroplasts
4. Vacuoles

Answer: 2. Lysosomes

Question 32. The vacuole is a cell structure present in both plant and animal cells. Which of the following statements about plant and animal cell vacuoles is true?

1. The plant cell has many small vacuoles, but the animal cell has one large vacuole.
2. The plant cell has one large vacuole, but the animal cell has many small vacuoles.
3. The plant as well as the animal cell has many small vacuoles.
4. The plant as well as the animal cell has one large vacuole.

Answer: 2. The plant cell has one large vacuole, but the animal cell has many small vacuoles.

Question 33. Which of the following is found only in animal cells?

1. Nucleus
2. Cytoplasm
3. Centrosome
4. Mitochondria

Answer: 3. Centrosome

Question 34. The cell wall is present only in the plant cell. The main function of the cell wall is to

1. Protect the cell
2. Control cellular activities
3. Carry out photosynthesis
4. Perform cellular respiration

Answer: 1. Protect the cell

Question 35. Which of the following statements about the cell wall is correct?

1. It controls all the activities of the cell.
2. It carries out the process of photosynthesis.
3. It protects the plant cell from variations in the temperature of the external environment.
4. It contains thread-like structures called chromosomes, which take part in inheritance.

Answer: 3. It protects the plant cell from variations in the temperature of the external environment.

Question 36. Green plants produce oxygen which is utilized by all animals. The cell organelle that produces oxygen in a plant cell is the

1. Mitochondrion
2. Chloroplast
3. Vacuole
4. Nucleus

Answer: 2. Chloroplast

Question 37. Which of the following statements is/are correct?

1. Unicellular organisms are formed of single cells
2. Multicellular organisms are formed of many cells
3. Millions of cells are present in plants
4. All the above

Answer: 4. All the above

Question 38. The largest animal cell is

1. Peacock egg
2. Ostrich egg
3. Crocodile egg
4. Hen egg

Answer: 2. Ostrich egg

Question 39. The smallest animal cell is of

1. POLO
2. Ostrich egg
3. Virus
4. None

Answer: 1. PPLO

Question 40. Which of the following cells change their shape continuously?

1. Amoeba
2. Blood cells
3. Nerve cells
4. Both 1 & 2

Answer: 4. Both 1 & 2

Question 41. Which of the following is true for nerve cells?

1. They change their shape continuously
2. They are long and convey messages to different parts of the body
3. They help in respiration and photosynthesis
4. All

Answer: 2. They are long and convey messages to different parts of the body

Question 42. Identify the true statements.

1. Mitosis takes place in vegetative cells
2. Meiosis takes place in non-reproductive cells
3. Cell division in plants occurs throughout their life
4. Only 1
5. Both 1 and 2
6. Both 2 and 3
7. Both 1 and 3

Answer: 4. Both 1 and 3

Question 43. The cell division responsible for the passing on of characters from the two parents to the child is

1. Mitosis
2. Meiosis
3. Both
4. None

Answer: 2. Meiosis

Question 44. The cell division that is responsible for the growth of an animal body is

1. Mitosis
2. Meiosis
3. Both
4. None

Answer: 1. Mitosis

Basic Biology Conceptive Worksheet

Question 1. Who observed cork cells under the microscope for the first time?

1. Robert Hooke
2. Robert Brown
3. J.E. Purkinje
4. J.M. Schleiden

Answer: 1. Robert Hooke

Question 2. Which part of a plant did Robert Hooke use to observe a cell using a microscope?

1. Cork
2. Leaf
3. Root
4. Flower

Answer: 1. Cork

Question 3. Which of the following facts about Robert Hooke’s experiment leading to the discovery of cells is not correct?

1. He observed cells as honeycomb-like structures.
2. He took the sample from the stem of a tree.
3. He conducted his experiment in 1665.
4. He observed living cells.

Answer: 1. He observed cells as honeycomb-like structures.

Question 4. Cell theory was proposed by

1. Schleiden
2. Schwann
3. Both
4. None

Answer: 3. Both

Question 5. Cell theory was expanded by

1. Schleiden
2. Schwann
3. Rudolf Virchow
4. All

Answer: 4. All

Question 6. The given illustration represents a cell. In the given illustration, the structure labelled X is

1. Cell membrane
2. Cell wall
3. Vacuole
4. Plastid

Answer: 4. Plastid

Question 7. Which of the following statements about cell membranes is incorrect?

1. It regulates the entry and exit of substances in the cell
2. It separates the cell from its surrounding medium
3. It holds together the contents of the cell
4. It controls all the functions of the cell

Answer: 1. It regulates the entry and exit of substances in the cell

Question 8. The given figure shows a labelled plant cell. In the given figure, the cytoplasm is labelled as

1. 1
2. 2
3. 3
4. 4

Answer: 1. 1

Question 9. The given diagram illustrates an animal cell. Which labelled structure in an animal cell controls all the cellular activities?

1. 1
2. 2
3. 3
4. 4

Answer: 3. 3

Question 10. The given figure illustrates structure X present in a cell. Which of the following alternatives represents the correct function of structure X?

1. To provide rigidity to the cell
2. To provide turgidity to cell
3. To help in energy synthesis
4. To transfer the hereditary information

Answer: 4. To transfer the hereditary information

Question 11. The given diagram illustrates a cell. If the image illustrated represents a constituent cell of a multi-cellular animal, then the nucleus is labelled as

1. 1
2. 2
3. 3
4. 4

Answer: 1. 1

Question 12. Which of the following statements about prokaryotes is true?

1. All prokaryotes have a cell wall
2. Nucleus is absent in all prokaryotes
3. Prokaryotes are larger than eukaryotes
4. Ribosomes are larger in prokaryotes as compared to eukaryotes

Answer: 2. Nucleus is absent in all prokaryotes

Question 13. Which of the following statements about the nucleus is incorrect?

1. It is surrounded by a membrane called a nuclear membrane.
2. It contains thread-like structures called chromosomes.
3. It is that part of the cell where food is stored.
4. It takes part in the transfer of characteristics.

Answer: 3. It is that part of the cell where food is stored.

Question 14. The nucleus controls all life processes because of the presence of

1. Nuclear membrane
2. Nuclear pores
3. Chromosomes
4. Lysosomes

Answer: 3. Chromosomes

Question 15. Which of the following is responsible for the production of energy in eukaryotic cells?

1. Nucleus
2. Cell wall
3. Lysosomes
4. Mitochondria

Answer: 1. Nucleus

Question 16. Mitochondrial matrix contain

1. DNA
2. Ribosomes
3. Both
4. None

Answer: 4. None

Question 17. Cisternae are flattened disk-like membranous structures that are a part of

1. Chloroplast
2. Endoplasmic reticulum
3. Nucleus
4. Ribosomes

Answer: 2. Endoplasmic reticulum

Question 18. The given figure represents a plant cell. The labelled structure is present only in plant cells. In the given figure, label X represents

1. Vacuole
2. Nucleus
3. Nucleolus
4. Chloroplast

Answer: 2. Vacuole

Question 19. What is the primary function of chloroplast?

1. Photosynthesis
2. Food storage
3. Cell division
4. Protection

Answer: 1. Photosynthesis

Question 20. Carbon dioxide + Water → Glucose + Oxygen. The illustrated process occurs in the

1. Mitochondria
2. Chloroplasts
3. Ribosomes
4. Lysosomes

Answer: 3. Ribosomes

Question 21. Chloroplasts are cell organelles in plants which help to produce food for the plant. Which of the following is a source of energy used by chloroplasts to produce food?

1. Air
2. Sun
3. Soil
4. Water

Answer: 2. Sun

Question 22. The Golgi apparatus present in plant cells is called

1. Dictyosomes
2. Chromosomes
3. Plastids
4. Centromeres

Answer: 1. Dictyosomes

Question 23. Which of the following cell organelles digest a variety of substances including worn-out organelles, food particles, viruses, and bacteria?

1. Mitochondria
2. Golgi apparatus
3. Lysosomes
4. Chloroplasts

Answer: 3. Lysosomes

Question 24. In the given figure, the structure labelled X is called

1. Vacuole
2. Nucleus
3. Ribosome
4. Chloroplast

Answer: 1. Vacuole

Question 25. In plant cells, the nucleus is found at the periphery of cells because of the presence of a central

1. Plastid
2. Lysosome
3. Ribosome
4. Vacuole

Answer: 4. Vacuole

Question 26. Jyoti drew a diagram of a plant cell and labelled one of its parts as X. Which cell component is labelled as X by Jyoti?

1. Cell membrane
2. Cell wall
3. Nucleus
4. Plastid

Answer: 2. Cell wall

Question 27. Which of the following structures is prominent in plant cells?

1. Vacuole
2. Centriole
3. Ribosome
4. Chloroplast

Answer: 1. Cell wall

Question 28. Division of labour is seen in

1. Amoeba
2. Bacteria
3. Frog
4. None

Answer: 4. None

Question 29. The size of an ostrich egg is:

1. 170 × 25 mm
2. 150 × 150 mm
3. 170 × 135 mm
4. 150×15mm

Answer: 3. 170 × 135 mm

Question 30. The size of PPLO is about

1. 0.1 to 0.5 micron
2. 1 to 5 microns
3. 10 to 20 microns
4. 100 to 200 microns

Answer: 1. 0.1 to 0.5 micron

Question 31. Growth and inheritance are the result of

1. Mitosis
2. Meiosis
3. Both
4. None

Answer: 3. Both

Question 32. In which of the following, the cell division take place throughout life?

1. Frog
2. Man
3. Fish
4. Neem plant

Answer: 4. Neem plant

Basic Biology Summative Worksheet MCQs

Question 1. The cell was discovered by

1. Robert Brown
2. Linnaeus
3. Robert Hooke
4. Darwin

Answer: 3. Robert Hooke

Question 2. Each cell has a

1. Nucleus
2. Cell wall
3. Chloroplast
4. All the above

Answer: 1. Nucleus

Question 3. The cell is surrounded by a membrane called

1. Cell wall
2. Cell membrane
3. Cytoplasm
4. Nuclear membrane

Answer: 2. Cell membrane

Question 4. Organelles are present in

1. Cytoplasm
2. Vacuoles
3. Nucleus
4. All the above

Answer: 1. Cytoplasm

Question 5. A cell organelle commonly called a ‘suicide bag’

1. Nucleus
2. Lysosome
3. Chloroplast
4. Ribosome

Answer: 2. Lysosome

Question 6. Robert Hooke was the first person to observe ____1_____ cells. He observed these cells using a ____2______. The information in which alternative completes the given statements?

1. 1- cork 2- microscope
2. 1- cork 2- magnifying glass
3. 1- onion peel 2- microscope
4. 1- onion peel 2- magnifying glass

Answer: 1. 1- cork 2- microscope

Question 7. The given figure depicts a diagram of a eukaryotic animal cell. It shows organelles labeled 1 and 2. The function of the part of the cell marked as I is to

1. Absorb energy from the sun and prepare food
2. Perform aerobic respiration and synthesize acids
3. Regulate the exit and entry of substances in the cell
4. Control cell metabolism, and form ribosomes, DNA and RNA

Answer: 4. Control cell metabolism, and form ribosomes, DNA and RNA

Question 8. The cytoplasm is composed of all cell organelles except the nucleus. The contents of the nucleus are separated from the cytoplasm by the nuclear membrane. The nucleus and nuclear membrane together form nucleoplasm. Cytoplasm and nucleoplasm are together referred to as

1. Protoplast
2. Cytonucleus
3. Protoplasm
4. Nucleolus

Answer: 3. Protoplasm

Question 9. The nucleus is usually spherical in shape and is located at the centre of the cell. Which of the following statements about the nucleus is incorrect?

1. It controls all the activities of the cell.
2. It is surrounded by a porous nuclear membrane.
3. It takes part in the transfer of characteristics from parents to offspring.
4. It protects the plant cell from variations in the temperature of the external environment.

Answer: 3. It takes part in the transfer of characteristics from parents to offspring.

Question 10. Tarun draws the diagram of a cell and labels one of its components as X. The cell component labelled by Tarun is

1. Nucleolus
2. Nucleus
3. Vacuole
4. Plastid

Answer: 4. Plastid

Question 11. Chloroplasts are cell organelles found mostly in all plant cells. Chloroplasts facilitate the process of

1. Respiration
2. Photosynthesis
3. Lipid production
4. Protein production

Answer: 1. Respiration

Question 12. ____1_____ is a type of plastid that is only present in plant cells. It carries out the process of ____2_____. The information in which alternative completes the given statements?

1. 1- Chloroplast 2- photosynthesis
2. 1- Vacuole 2- photosynthesis
3. 1- Chloroplast 2- excretion
4. 1- Vacuole 2- excretion

Answer: 2. 1- Vacuole 2- photosynthesis

Question 13. Which cell organelle produces oxygen?

1. Mitochondrion
2. Chloroplast
3. Lysosome
4. Ribosome

Answer: 2. Chloroplast

Question 14. The vacuole present in a plant cell differs from that of an animal cell because the former has

1. Many small vacuoles
2. Double membrane vacuole
3. A single membrane vacuole
4. A large centrally placed vacuole

Answer: 4. A large centrally placed vacuole

Question 15. The given illustration represents a cell. The function of protecting the cell from external injury is performed by the structure labelled

1. 1
2. 2
3. 3
4. 4

Answer: 3. 3

Question 16. Which figure represents a plant cell?

1. 4
2. 3
3. 2
4. 1

Answer: 2. 3

Question 17. The given figure illustrates five organelles of a cell. Which of the following groups represents the basic components of a cell?

1. 1, 2 and 3
2. 1, 2 and 4
3. 1, 3 and 4
4. 3, 4 and 5

Answer: 3. 1, 3 and 4

Question 18. Cell membrane performs the function of

1. Controlling the movement of materials in and out of the cell
2. Manufacturing energy to carry out various functions
3. Controlling the activities of the cell
4. Storing food, water, and waste

Answer: 1. Controlling the movement of materials in and out of the cell

Question 19. Sunaina read in her science book that a jelly-like substance is present inside the cell, which is mostly made up of water. Which cell component did Sunaina read about?

1. Nucleus
2. Cell wall
3. Cytoplasm
4. Cell membrane

Answer: 3. Cytoplasm

Question 20. Sonali took a toothpick and gently scraped the inner side of her cheek with it.

1. She placed the contents of the toothpick on a clean glass slide containing a drop of water and then added a drop of methylene blue stain to it.
2. She gently placed a cover slip over the slide and observed the glass slide under the microscope. The given illustration represents the observation made by Sonali.

The darkly stained region of cheek cells represents the

1. Nucleus
2. Vacuole
3. Cytoplasm
4. Mitochondria

Answer: 1. Nucleus

Basic Biology Fill In The Blanks

using the words given below. One word can be used twice:

Egg, Microscope, Nucleus, Chloroplast, Cytoplasm, Cell membrane, Mitochondria, Robert Hooke, Plant

Question 1. The _____________ is the control centre of the cell.
Answer: NucleuS

Question 2. The instrument used to see tiny objects is called a__________.
Answer: Microscope

Question 3. __________ is called the kitchen of a cell.
Answer: Chloroplast

Question 4. An ________ is a cell that can be seen without a microscope.
Answer: Egg

Question 5. The _____________, ______________ and _________________ are parts of a cell.
Answer: Nucleus, Cytoplasm, Cell membrane, Mitochondria

Question 6. Energy is produced in _________________ cells.
Answer: Mitochondria

Question 7. The term cell was given by _________________.
Answer: Robert Hooke

Question 8. The cell wall is present in _________________.
Answer: Plant

Basic Biology Write True Or False

Question 1. Most cells have only one nucleus.
Answer: True

Question 2. Only the nucleus of a cell represents the protoplasm.
Answer: False

Question 3. Most cells are microscopic.
Answer: True

Question 4. All living organisms are made of cells.
Answer: True

Question 5. Cells must have a nucleus to live.
Answer: False

Question 6. Every cell has a cytoplasm.
Answer: True

Question 7. All cells in a multicellular organism can live independently.
Answer: False

Question 8. The outermost covering in an animal cell is called the cell wall.
Answer: False

Basic Biology Match The Following Columns

Answer: 1-3, 2-4, 3-1, 4-4, 5-6, 6-2