WBBSE For Class 9 Life Science Chapter 2 Levels Of Organization Of Life MCQS

by

WBBSE Chapter 2 Levels Of Organization Of Life MCQs

Question 1. The biomolecules are —

  1. Unique to life
  2. Organic in nature
  3. The product of biological activity
  4. All of these

Answer: 4. All of these.

Question 2. The most abundant inorganic compound in living organisms is —

  1. Sodium chloride
  2. Water
  3. Phosphoric acid
  4. Calcium Carbonate

Answer: 2. Water.

Read And Learn More WBBSE Solutions For Class 9 Life Science And Environment MCQs

Question 3. Goitre results due to the deficiency of —

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

Answer: 3. Iodine.

Question 4, Which of the following are derived lipids?

  1. Story! ester
  2. Steroids
  3. Neutral fats
  4. Waxes

Answer: 2. Steroids.

WBBSE For Class 9 Life Science Chapter 2 Levels Of Organization Of Life MCQS

Wbbse Class 9 Life Science Chapter 2 Mcq With Answers

Question 5. The sugar present in nucleotides is always —

  1. Deoxyribose
  2. Ribose
  3. Both a and b “
  4. A pentose sugar

Answer: 4. A pentose sugar.

Question 6. How many types of nitrogenous bases are found in the nucleic acid ?

  1. 2
  2. 4
  3. 5
  4. 6

Answer: 1. 2.

Question 7. Monosaccharides are —

  1. Simple sugar –
  2. Compound sugar
  3. Derived sugar
  4. None

Answer: 1. Simple sugar.

Class 9 English Bliss Class 9 Life Science
Class 3 English Class 9 Geography 
Class 10 Life Science  Class 9 History 
Class 9 History Class 9 Maths

Question 8. Macromolecule is —

  1. Glucose
  2. Nucleic acid
  3. Amino acid
  4. All

Answer: 2. Nucleic acid.

Question 9. An enzyme activator mineral element is —

  1. Mg
  2. Ca
  3. Mn
  4. All

Answer: 4. All.

Levels Of Organization Of Life Class 9 Mcq Wbbse

Question 10. A substance used as a heat insulator is —

  1. Carbohydrate
  2. Protein
  3. Lipid
  4. Starch

Answer: 3. Lipid.

Question 1. The branch of biology dealing with the study of cells is —

  1. Histology
  2. Cytology
  3. Morphology
  4. Ecology

Answer: 2. Cytology

Question 2. Which structure of animal cells is characterised by selective permeability?

  1. Cell wall
  2. Ribosome
  3. Chromosome
  4. Cell membrane

Answer: 4. Cell membrane

Question 3. The cell membrane is mainly composed of —

  1. Protein and sugar
  2. Protein and lipid t
  3. Starch and lipid
  4. Sugar and minerals

Answer: 2. Protein and lipid

Question 4. The Golgi body originates from —

  1. Cell membrane
  2. Endoplasmic reticulum
  3. Cytoplasm
  4. Nuclear membrane

Answer: 2. Endoplasmic reticulum

Class 9 Life Science Chapter 2 Mcq Questions West Bengal Board

Question 5. The protein factory of the cell is —

  1. Centrosome
  2. Chromosome
  3. Ribosome
  4. Lysosome

Answer: 3. Ribosome

Question 6. In which one of the following, is DNA absent?

  1. Mitochondria
  2. Chloro plast
  3. Peroxisome
  4. Nucleus

Answer:  3. Peroxisome

Question 7. The suicidal bag of the cell is —

  1. Centrosome
  2. Peroxisome
  3. Lysosome
  4. Chromosome

Answer: 3. Lysosome

Question 8. Which of the following is the Lysosome of plant cells?

  1. Sphaerosome
  2. Peroxisome
  3. Glyoxysome
  4. Microsome

Answer: 1. Sphaero some

Question 9. The chief constituent of the cell wall is —

  1. Lipid
  2. Salt
  3. Carbohydrate
  4. Protein

Answer: 3. Carbohydrate

Wbbse Life Science Class 9 Chapter 2 Multiple Choice Questions

Question 10. The true nucleus is not found in —

  1. Protozoa
  2. Bacteria
  3. Funge
  4. Algae

Answer: 2. Bacteria

Question 11. Covering membrane of vacuole is — e

  1. Cell wall
  2. Cell membrane
  3. Tonoplant
  4. Chloroplast

Answer: 3. Tonoplast

Question 12. Besides the nucleus, DNA is also found in —

  1. Endoplasmic reticulum
  2. Chloroplast
  3. Ribosome
  4. Golgi body

Answer: 2. Chloroplast.

Question 13. The largest cell is —

  1. Ramie fibre
  2. Acetabularia
  3. Egg of ostrich
  4. Neuron

Answer: 3. Egg of ostrich

Question 14. Quantasome remains within —

  1. Chloroplast
  2. Leucoplast
  3. Chromoplast
  4. Tonoplast

Answer: 1. Chloroplast

Levels Of Organization Of Life Mcq For Class 9 Bengali Medium

Question 15. “Powerhouse of the cell” is —

  1. Golgi body
  2. Chloroplast
  3. Mitochondria
  4. Nucleus

Answer: 3. Mitochondria.

Question 16. Who defined protoplasm as a physical basis of life?

  1. Schwann
  2. Watson
  3. Huxley
  4. Dujardin

Answer: 4. Dujardin

Question 17. Dictyosomes are —

  1. Type of ribosomes
  2. Type of flagellalid organelle
  3. Respiratory particle
  4. Golgi bodies

Answer: 4. Golgi bodies

Question 18. The organelle found between cell walls of two cells is called —

  1. Microsome
  2. Middle lamella
  3. Lysosome
  4. Desmosome

Answer: 2. Middle lamella :

Question 19. The “Fluid mosaic model” of the cell membrane is given by —

  1. Robert Brown
  2. Singer & Nicholson
  3. Schleiden & Schwann
  4. Schimpher

Answer: 2. Singer and Nicholson

Question 20. Hydrolytic enzymes are present in —

  1. Mitochondria
  2. Golgi bodies
  3. Lysosome
  4. Plastids

Answer: 3. Lysosome

Question 21. Which of the following is the seat of all cell metabolic activities?

  1. Cytoplasm
  2. Nucleus
  3. Mitochondria
  4. Endoplasmic reticulum

Answer: 1. Cytoplasm

Question 22. The “cell theory” is also known as —

  1. Cell Biology
  2. Cytology
  3. Cell doctrine
  4. All of these

Answer: 3. Cell doctrine

Question 23. The cell theory was proposed by —

  1. Singer and Nicholson
  2. Schleiden and Schwann
  3. Singer and Schwann
  4. Schleiden and Nicholson

Answer: 2. Scheliden and Schwann’

Question 24. The term “Plastid” was coined by —.

  1. Haeckel
  2. Strasburger
  3. Virchow
  4. Flemming

Answer: 1. Haeckel

Question 25. Protoplasmic strands between adjacent plant cells are —

  1. Ectodesmata
  2. Desmosome
  3. Proto plasmic fibrils
  4. Plasmodesmata

Answer: 4. Plasmodesmata

Question 26. Cristae occurs in —

  1. Golgi bodies
  2. Nucleus
  3. Mitochondria
  4. ER

Answer: 3. Mitochondria

Question 27. The endoplasmic reticulum remains attached to —

  1. Mitochondria
  2. Golgi bodies
  3. Nuclear envelope
  4. Chloroplasts

Answer: 3. Nuclear envelope

Question 28. Robert Brown discovered —

  1. Cell wall
  2. Nucleolus
  3. Mitochondria
  4. Nucleus

Answer: 4. Nucleus

Question 29. Which organelle is present only in plants?

  1. Glyoxysome
  2. Ribosome
  3. Lysosome
  4. Peroxisome

Answer: 1. Glyoxysome

Question 30. Leucoplast can be —

  1. Amyloplast
  2. Elaioplast
  3. Aleuroneplast
  4. Any of these

Answer: 4. Any of these

Question 31. Cell theory does not apply to —

  1. Bacteria
  2. Fungi
  3. Algael
  4. Virus

Answer: 4. Virus

Question 32. Which one of these cell organelles lacks a membrane?

  1. Mesosome
  2. Ribosome
  3. Mitochondria
  4. Liposome

Answer: 2. Ribosome

Question 33. Plant cell normally lacks —

  1. Ribosome
  2. Golgi bodies
  3. Centriole
  4. Cell membrane

Answer: 3. Centriole

Question 34. Which one of the following structures is an organelle within an organelle?

  1. Ribosome
  2. Peroxisome
  3. ER
  4. Mesosome

Answer: 2. Peroxisome

Question 35. What is mitoplast?

  1. Membraneless mitochondria
  2. Another name for mitochondria
  3. Mitochondria without outer membrane
  4. Mitochondria without inner membrane

Answer: 3. Mitochondria without outer membrane

Question 36. The animal cells are interconnected by —

  1. Plasmodesmata
  2. Cell wall
  3. Desmosome
  4. Plasma membrane

Answer: 3. Desmosome

Question 37. Prokaryotic cells do not have —

  1. Nucleolus
  2. Membrane bound organelles
  3. Centrioles
  4. All of these.

Answer: 4. All of these.

Chapter 2 Levels Of Organization Of Life Tissue MCQs

Question 1. The basement membrane is associated with —

  1. Epithelial tissue
  2. Connective tissue
  3. Muscular tissue
  4. Nervous tissue

Answer: 1. Epithelial tissue

Question 2. The nucleus is absent in —

  1. Neutrophil
  2. Eosinophil
  3. Basophil
  4. Erythrocytes

Answer: 2. Eosinophil

Question 3. The intercalated disc is present in —

  1. Striated muscle
  2. Smooth muscle
  3. Cardiac muscle
  4. None of them.

Answer: 3. Cardiac muscle.

Class 9 Life Science Chapter 2 Important Mcq With Solutions

Question 4. The outermost covering of the neurone is —

  1. Analemma
  2. Neuro lemma
  3. Myelin sheath
  4. None of them

Answer: 2. Neuro lemma

Question 5. Scale-like tissue is represented by —

  1. Squamous epithelium
  2. Columnar epithelium
  3. Cuboidal epithelium
  4. Ciliated epithelium

Answer: 2. Columnar epithelium

Question 6. The columnar epithelium is found in —

  1. Stomach
  2. Small intestine
  3. Large intestine
  4. Sweat gland

Answer: 2. Small intestine

Question 7. Lymphoid tissues are found in —

  1. Thymus gland
  2. Sweat gland
  3. Liver gland
  4. Stomach

Answer: 1. Thymus gland

Question 8. The tissue forms padding under the skin is —

  1. Areolar tissue
  2. Adipose tissue
  3. Bone
  4. Cartilage

Answer: 2. Adipose tissue

Question 9. Tendon is an example of —

  1. Cartilage
  2. Fibrous connective tissue
  3. Muscular tissue
  4. Adipose tissue

Answer: 2. Fibrous connective tissue

Question 10. Connective tissue which joins muscle to bones is —

  1. Ligament
  2. Tendon
  3. Cartilage
  4. All

Answer: 2. Tendon

Question 11. The tissue concerned with the perception and response of animals is —

  1. Muscular tissue
  2. Nerve tissue
  3. Connective tissue
  4. Epithelial tissue

Answer: 2. Nerve tissue

Question 12. The tissue present at the joining between two long bones is —

  1. Tendon
  2. Ligaments
  3. Epithelial
  4. Nerve tissue

Answer: 2. Ligaments

Question 13. A part of the body to perform some specified function is —

  1. Cell
  2. Tissue
  3. Organs
  4. System

Answer: 3. Organs

West Bengal Board Class 9 Life Science Chapter 2 Mcq 

Question 14. Tissue is formed by —

  1. Similar cells with the same metabolic activity
  2. Similar cells with different metabolic activity
  3. Dissimilar cells with the same function
  4. Similar cells with similar origin

Answer: (4) Similar cells with similar origin

Question 15. “Pavement epithelium” refers to —

  1. Columnar epithelium
  2. Squamous epithelium
  3. Cuboidal epithelium
  4. Pseudostratified epithelium

Answer: 2. Squamous epithelium.

Question 16. Ciliated epithelium in our body is found in —

  1. Vagina
  2. Trachea
  3. Bile duct
  4. Loop of Henley

Answer: 2. Trachea.

Question 17. Who first used the term tissue?

  1. Myer
  2. Mapighi
  3. Xavier
  4. Linneus

Answer: 3. Xavier.

Question 18. The sensory epithelium is modified into —

  1. Squamous epithelium
  2. Columnar cells
  3. Ciliated cells
  4. Stratified cells

Answer: 2. Columnar cells.

Question 19. Tearing of ligament is called —

  1. Sprain
  2. Dislocation
  3. Fracture
  4. Break

Answer: 1. Sprain.

Levels Of Organization Of Life Class 9 Mcq Online Test Wbbse

Question 20. Which of the following stores histamine and serotonin?

  1. Macrophages
  2. Mast cells
  3. Fibroblasts
  4. Plasma cells

Answer: 2. Mast cells.

Question 21. The haversian system is a feature of —

  1. Reptilian bone
  2. Mammalian bone
  3. Avian bone
  4. All animals

Answer: 2. Mammalian bone

Question 22. Cells forming cartilage are called —

  1. Osteoblast
  2. Fibroblast
  3. Chondrocytes
  4. Epiblasts

Answer: 3. Chondrocytes

Question 23. Mast cells are found in —

  1. Connective tissue
  2. Muscles
  3. Epithelial tissue
  4. Nerve cell

Answer: 1. Connective tissue

Question 24. Adipose tissue is rich in—

  1. Mast cells
  2. Fat cells
  3. Lymphocytes
  4. Monocytes

Answer: 2. Fat cells

Question 25. The most abundant protein in the muscle is —

  1. Actin
  2. Myosin
  3. Myoglobin
  4. Tropomyosin

Answer: 2. Myosin

Question 26. The nerve cells do not have —

  1. Microtubules
  2. Mitochondria
  3. Nucleus
  4. Centrosome

Answer: 4. Centrosome

Question 27. Nodes of Ranvier are found in —

  1. Cyton
  2. Dendron
  3. Axon
  4. Dendrites

Answer: 3. Axon

Question 28. The main property of nervous tissue is —

  1. Contraction
  2. Irritability
  3. Excitability
  4. Both B and C

Answer: 4. Both b and c

Question 29. Areolar connective tissue joins —

  1. Bone with bones
  2. Fat body with muscle
  3. Integument with music
  4. Bone with muscle

Answer: 3. Integument with muscle

Question 30. Which one of the following is not a connective tissue —

  1. Bone
  2. Cartilage
  3. Blood
  4. Muscle

Answer: 4. Muscle

Question 31. Bone marrow is absent in —

  1. Reptilia
  2. Amphibia
  3. Mammalia
  4. Birds

Answer: 4. Birds

Class 9 Life Science Levels Of Organization Mcq In Bengali

Question 32. The science which deals with the study of tissue is called —

  1. Anatomy
  2. Histology
  3. Histogen
  4. Tissue system

Answer: 2. histology

Question 33. Apical, Intercalary and lateral meristems are differentiated based on —

  1. Development
  2. Origin
  3. Function
  4. Position

Answer: Origin

Question 34. Intercalary meristem is found in —

  1. Root
  2. Stem tip
  3. Petiole and Internodes
  4. Latex

Answer: 3. Petiole and Internodes

Question 35. The simple tissue having the thinnest wall in the plant is —

  1. Parenchyma
  2. Collenchyma
  3. Aerenchyma
  4. Sclerenchyma

Answer: 1. Parenchyma.

Question 36. The xylem of the stem is —

  1. Exarch
  2. Endarch
  3. Mesarch
  4. None of them

Answer: 2. Endarch.

Wbbse Class 9 Life Science Chapter 2 Mcq Questions And Answers

Question 37. The vascular bundle in the dicot stem is —

  1. Open collateral
  2. Closed collateral
  3. Open collateral
  4. Closed collateral

Answer: 1. open collateral.

Question 38. The living element of the xylem is —

  1. xylem parenchyma
  2. xylem fibre
  3. Tracheid
  4. Trachea

Answer: 1. xylem parenchyma

Question 39. The photosynthetic parenchyma is —

  1. Chlorenchyma
  2. Idioblast
  3. Aerenchyma
  4. Sclerenchyma

Answer: 1. Chlorenchyma

Question 40. Meristematic tissue originates from —

  1. Pro-meristem
  2. Apical meristem
  3. Lateral meristem
  4. Cambium

Answer: 1. Pro-meristem

Question 41. An example of lateral meristem is —

  1. Cork cambium
  2. Interfascicular cambium
  3. Fascicular cambium
  4. All of these

Answer: 4. All of these

Question 42. The tissue which consists of dead cells with thickened lignified wall is—

  1. Parenchyma
  2. Collenchyma
  3. Sclerenchyma
  4. None of these

Answer:  3. Sclerenchyma

Question 43. The dead element of phloem tissue is —

  1. Phloem fibre
  2. Phloem parenchyma
  3. Sieve tube
  4. Companion cells

Answer:  1. Phloem fibre

Question 44. The category of plant tissue that has lost its ability to multiply is—

  1. Parenchyma
  2. Collenchyma
  3. Sclerenchyma
  4. All of these

Answer: 4. All of these

Wbbse Class 9 Life Science Chapter 2 Mcq Questions And Answers

Question 45. Air cavity containing parenchyma is called —

  1. Chlorenchyma
  2. Aerenchyma
  3. Prosenchyma
  4. Mesenchyma

Answer: 2. Aerenchyma

Question 46. Palisade is a type of —

  1. Parenchyma
  2. Chlorenchyma
  3. Photosynthetic tissue
  4. All of the above

Answer: 4. All of the above

Question 47. Science which deals with the study of tissue is called —

  1. Anatomy
  2. Histology
  3. Tissue System
  4. Histogen

Answer: 2. Histology

Question 48. The cells which can perpetuate themselves are —

  1. Perpetual cells
  2. Permanent cells
  3. Meristematic cell
  4. Old, inactive cell

Answer: 3. Meristematic cell

Question 49. A simple tissue is always —

  1. Living
  2. Thin-walled
  3. Homogenous
  4. Storage

Answer: 3. Homogenous

Question 50. Primary growth in plants occurs due to the activity of —

  1. Apical meristem
  2. Intercalary meristem
  3. Cambium
  4. Both a and b

Answer: (4) both a and b

Question 51. A Cambium is always —

  1. Primary in origin
  2. Secondary in origin
  3. Lateral in position
  4. Present in the vascular bundle

Answer: 3. Lateral in position

Question 52. Identify the dead plant tissue —

  1. Phloem
  2. Xylem
  3. Sclerenchyma
  4. Both b and c

Answer: 3. Sclerenchyma

Question 53. Water-conducting elements in angiosperm are —

  1. Vessels
  2. Tracheids
  3. Tracheae
  4. All of these

Answer: (4) All of these

Question 54. The only living component of xylem tissue is —

  1. Tracheae
  2. Xylem parenchyma
  3. Xylem fibre
  4. Tracheids

Answer: 2. xylem parenchyma

Question 55. The only dead cell of phloem tissue is —

  1. Phloem fibre
  2. Phloem parenchyma
  3. Sieve tube
  4. Companion cell

Answer: 1. Phloem fibre

Question 56. Chlorophyll: containing parenchyma is called —

  1. Sclerenchyma
  2. Collenchyma
  3. Chlorenchyma
  4. Aerenchyma

Answer: 3. Chlorenchyma

Question 57. The conducting tissue in plants is —

  1. Xylem
  2. Phloem
  3. Meristematic tissue
  4. Both a and b

Answer: 4. Both a and b

Question 58. The cells having the capacity to divide are—

  1. Meristematic cell
  2. Xylem
  3. Phloem
  4. All

Answer: 1. Meristematic cell

Question 59. Parenchyma with large air sacs are called —

  1. Chlorenchyma
  2. Aerenchyma
  3. Collenchyma
  4. Sclerenchyma

Answer: 2. Aerenchyma

Question 60. Cell wall thickened at the corner in—

  1. Collenchyma
  2. Parenchyma
  3. Sclerenchyma
  4. None of these

Answer: 1. Collenchyma

Question 61. Stone cells are—

  1. Xylem
  2. Phloem
  3. Sclereids
  4. Fibres

Answer: 3. Sclereids

Question 62. Meristematic tissue develops from —

  1. Permanent tissue
  2. Cambium
  3. Promeristem
  4. Phloem

Answer: 3. Promeristem

Question 63. The most efficient conducting element of the xylem is —

  1. Tracheids
  2. Vessels
  3. Xylem fibre
  4. All of these

Answer: 2. Vessels

Chapter 2 Levels Of Organization Of Life Major Organs Of Human Body MCQs

Question 1. The alimentary system is concerned with —

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

Answer: 2. Digestion

Question 2. The ‘U’ shaped Duodenum is the part of —

  1. The first part of the small intestine
  2. The middle part of the small intestine
  3. The last part of the small intestine
  4. Large intestine.

Answer: The first part of the small intestine

Question 3. Lungs are the parts of ——

  1. Alimentary system
  2. Excretory system
  3. Respiratory system
  4. Circulatory system

Answer: 3. Respiratory system

Question 4. The stomach consists of —

  1. Two
  2. Three
  3. Four
  4. Five parts

Answer: 1. Two

Question 5. The kidney is a part of —

  1. Respiratory system
  2. Excretory system
  3. Circulatory system
  4. Alimentary system

Answer: 2. Excretory system

Question 6. The pumping organ of blood is —

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

Answer: 3. Heart

Question 7. One of the functions of the alimentary system is —

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

Answer: 2. Digestion

Question 8. The human heart is composed of — chambers.

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

Answer: 4. Four

Leave a Comment