Digestion And Absorption Multiple Choice Question and Answers

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Digestion And Absorption Multiple Choice Questions

Question 1. A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?

  1. Canines
  2. Pre-molars
  3. Molars
  4. Incisors

Answer: 2. Pre-molars

Question 2. Which cells of Crypts or Lieberkuhn secrete antibacterial lysozyme?

  1. Paneth cells
  2. Zymogen cells
  3. Kupffer cells
  4. Argentaffin cells

Answer: 1. Paneth cells

Question 3. Which of the following options best represents the enzyme composition of pancreatic juice?

  1. Amylase, pepsin, trypsinogen, maltase
  2. Peptidase, amylase, pepsin, rennin
  3. Lipase, amylase, trypsinogen, procarboxypeptidase
  4. Amylase, peptidase, trypsinogen, rennin

Answer: 3. Lipase, amylase, trypsinogen, procarboxypeptidase

Read and Learn More WBCHSE Multiple Choice Question and Answers for Class 11 Biology

Question 4. Which of the following guards the opening of the hepatopancreatic duct into the duodenum?

  1. ileocecal valve
  2. Pyloric sphincter
  3. Sphincter of Oddi
  4. Semilunar valve

Answer: 3. Sphincter of Oddi

Question 5. In the stomach, gastric acid is secreted by the—

  1. Parietal cells
  2. Peptic cells
  3. Acidic cells
  4. Gastrin secreting cells

Answer: 1. Parietal cells

Question 6. Primary dentition in humans differs from permanent dentition in not having one of the following types of teeth—

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

Answer: 3. Premolars

Question 7. The enzymes that are not present in succus entericus are—

  1. Lipase
  2. Maltase
  3. Nucleases
  4. Nucleosidase

Answer: 3. Nucleases

Question 8. The initial step in the digestion of milk in humans is carried out by—

  1. Lipase
  2. Trypsin
  3. Rennin
  4. Pepsin

Answer: 3. Rennin

Question 9. Fructose is absorbed into the blood through mucosa cells of the intestine by a process called—

  1. Active transport
  2. Facilitated transport
  3. Simple diffusion
  4. Co-transport mechanism

Answer: 2. Facilitated transport

Question 10. Which of the following does not produce any digestive enzymes?

  1. Salivary gland
  2. Pancreas
  3. Liver
  4. Stomach

Answer: 3. Pancreas

Question 11. The disease that occurs in mature adult human beings due to deficiency of calciferol is—

  1. Keratomalacia
  2. Osteomalacia
  3. Glossitis
  4. Pernicious anaemia

Answer: 2. Osteomalacia

Question 12. Absorption of vitamin B12 in humans requires glycoprotein ‘P’ secreted from ‘Q’. The correct choices of P and Q are—

  1. P-extrinsic factor and Q-stomach
  2. P-intrinsic factor and Q-stomach
  3. P-intrinsic factor and Q-small intestine
  4. P-exopolysaccharide and Q-small intestine

Answer: 2. P-intrinsic factor and Q-stomach

Question 13. The salivary amylase shows maximum digestive action at pH—

  1. 3.6
  2. 6.8
  3. 7.5
  4. 8.5

Answer: 2. 6.8

Question 14. In the following process of digestion, the enzymes at location ‘X’ and ‘Y’ Define digestion respectively,

Proteins \(\stackrel{\mathrm{x}}{\longrightarrow}\) protease And Peptones \(\stackrel{\mathrm{Y}}{\longrightarrow}\) Dipeptides

  1. Chymotrypsin and pepsin
  2. Pepsin and trypsin
  3. Ptyalin and pepsin
  4. Trypsin and dipeptidase

Answer: 2. Pepsin and trypsin

Question 15. Choose the wrong statements among the following—

  1. Trypsinogen is activated by enterokinase
  2. The optimum pH for salivary amylase activity is 8.9
  3. Rennin helps in the digestion of milk proteins
  4. Goblet cells secrete mucus
  5. Submucosal glands of the intestine are also known as Brunner’s glands

Answer: 2. The optimum pH for salivary amylase activity is 8.9

Question 16. Chylomicrons are—

  1. Small fat globules coated with protein
  2. Protein molecules coated with fat
  3. Small granules found in gastric juice
  4. Neural signals that stimulate intestinal secretions
  5. Aerobic microbes

Answer: 1. Small granules found in gastric juice

Question 17. Match Column 1 With 2 And Column 3

Biology Class 11 Chapter 16 Digestion And Absorption Match The Following Coloumn Question 17

  1. 1-1-1, 2-3-2, 3-2-3, 4-4-4
  2. 1-4-1, 2-1-2, 3-4-3, 4-3-4
  3. 1-3-1, 2-1-3, 3-4-2, 4-2-4
  4. 1-3-1, 2-1-2, 3-4-3, 4-2-4
  5. 1-2-1,2-4-2, 3-3-3, 4-1,4

Answer: 3. 1-3-1, 2-1-3, 3-4-2, 4-2-4

Question 18. The middle part of the small intestine is—

  1. Duodenum
  2. Jejunum
  3. Ileum
  4. Pyloric

Answer: 2. Jejunum

Question 19. Release Of Pancreatic Juice From Pancreas is Stimulated by

  1. Secretin
  2. Trypsinogen
  3. Cholecystokinin
  4. Enterokinase

Answer: 2. Trypsinogen

Question 20. Pernicious Anaemia Results Due to Deficiency Of

  1. Vitamin B1
  2. Vitamin B12
  3. Vitamin A
  4. Iron

Answer: 2. Vitamin B12

Question 21. Which is incorrectly matched?

  1. Rennin—liver
  2. Ptyalin—mouth
  3. Pepsin—stomach
  4. Trypsin—intestine

Answer: 1. Rennin—liver

Question 22. Emulsified fats are digested by—

  1. Gastric juice and pancreatic juice
  2. Bile juice and intestinal juice
  3. Pancreatic juice and bile juice
  4. Pancreatic juice and intestinal juice

Answer: 3. Pancreatic juice and bile juice

Question 23. Which ‘enzyme’ initiates the digestion of proteins?

  1. Trypsin
  2. Aminopeptidase
  3. Pepsin
  4. Carboxypeptidase

Answer: 2. Aminopeptidase

Question 24. Select the correct match of the digested products in humans given in column 1 with their absorption site and mechanism in column 2

Biology Class 11 Chapter 16 Digestion And Absorption Match The Following Coloumn Question 24

  1. 1-3,2-2,3-4,4-1,5-5
  2. 1-3,2-4,3-1,4-5,5-2
  3. 1-2,2-5,3-1,4-4,5-3
  4. 1-4,2-3,3-1,4-2,5-5

Answer: 1. 1-3,2-2,3-4,4-1,5-5

Question 25. Which of the following is a gastrointestinal hormone?

  1. Prolactin
  2. Enterogastrone
  3. GH
  4. FSH

Answer: 2. Enterogastrone

Question 26. Digestion is brought about by—

  1. Enzymes
  2. Hormones
  3. Water
  4. Mucus

Answer: 1. Enzymes

Question 27. If the pH of the stomach is 1.6, then which enzyme will digest the protein?

  1. Trypsin
  2. Pepsin
  3. Amylase
  4. Erepsin

Answer: 2. Pepsin

Question 28. In rabbits, the digestion of cellulose takes place in—

  1. Colon
  2. Ileum
  3. Caecum
  4. Rectum

Answer: 3. Caecum

Question 29. What type of teeth are absent in rabbits?

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

Answer: 3. Canines

Question 30. Which part of our body secretes the hormone secretin?

  1. Ileum
  2. Stomach
  3. Duodenum
  4. Oesophagus

Answer: 3. Duodenum

Question 31. Salivary amylase, a digestive Enzyme Begins the digestion Of

  1. Carbohydrates
  2. Fats
  3. Proteins
  4. All Of these

Answer: 1. Carbohydrates

Question 32. Most digestion and absorption of food take place in

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

Answer: 2. Small intestine

Question 33. A balanced diet does not include—

  1. Carbohydrates and fats
  2. Nucleic acids and enzymes
  3. Proteins and vitamins
  4. Minerals and salts

Answer: 2. Nucleic acids and enzymes

Question 34. Column I contains the names of the sphincter muscles of the alimentary canal and column II contains their locations. Match them properly and choose the correct answer.

Biology Class 11 Chapter 16 Digestion And Absorption Match the Following Colounm Quesation 34

  1. 1-3,2-2,3-4,4-1,5-5
  2. 1-3,2-4,3-1,4-5,5-2
  3. 1-2,2-5,3-1,4-4,5-3
  4. 1-4,2-3,3-1,4-2,5-5

Answer: 4. 1-4,2-3,3-1,4-2,5-5

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