1. Organ that produces bile is
(a) pancreas
(b) oesophagus
(c) liver
(d) stomach
Ans. c
2. The component in bile which helps to emulsify fat in the duodenum is
(a) bile salts
(b) biliverdin
(c) bilirubin
(d) cholesterol
Ans. a
3. The HCl in gastric juice converts
(a) disaccharide to monosaccharide
(b) pepsinogen to pepsin
(c) prorennin to rennin
(d) polypeptide to peptide
Ans. b
4. Enzyme that is found on the mucous of the intestinal villi is
(a) peptidase
(b) trypsin
(c) amylase
(d) lipase
Ans. a
5. The glucose is converted into glycogen in liver and stored in
(a) liver and spleen
(b) liver and muscle
(c) liver
(d) spleen and muscles
Ans. b
6. The movements in the gut wall are known as
(a) metachronal
(b) diastole
(c) systole
(d) peristalsis
Ans. d
7. Which one of the following statements is true regarding digestion and absorption of food in human?
(a) About 60% of starch is hydrolysed by salivary amylase in our mouth
(b) Oxyntic cells in our stomach secrete the proenzyme pepsinogen
(c) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na
(d) Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries
Ans. c
8. The energy needed to fuel for essential body processes is called
(a) essential nutrient level
(b) recommended dailly allowance
(c) optimum energy intake
(d) basal metabolic rate
Ans. d
9. The energy content of fats
(a) is released by bile salts
(b) may be lost unless an herbivore eats some of its faeces
(c) is approximately two times that of carbohydrate or protein
(d) can reverse the effects of malnutrition
Ans. c
10. Peyer’s patches found in the small intestine are
(a) epithelial tissue
(b) glandular tissue
(c) lymphatic tissue
(d) haemopoietic tissue
Ans. c
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11. Which of the following is more likely to be found in animals with gastrovascular cavities than in those with alimentary canals?
(a) A large surface area for absorption of predigested nutrients
(b) Extracellular digestion
(c) Intracellular digestion
(d) Suspension feeding
Ans. c
12. Ruminants
(a) have teeth adapted for an omnivorous duct
(b) use microorganisms to digest cellulose
(c) eat their faeces to obtain nutrients digested from cellulose by microorganisms
(d) house symbiotic bacteria and microorganisms in a caecum
Ans. B
13. Zymogens are
(a) hormones that stimulate release of pancreatic enzymes
(b) enzymes attached to the brush border that hydrolyse nucleosides
(c) hydrolytic enzymes manufactured in inactive forms to protect the cells that produce them
(d) protein digesting enzymes that are activated by hydrochloric acid
Ans. c
14. The acidic pH of our stomach
(a) hydrolyses proteins
(b) is regulated by the release of gastrin
(c) is neutralised by gastric juice
(d) triggers the release of enterogasterone
Ans. b
15. After a meal of greasy french fries, which hormones and enzymes would you except to be most active?
(a) Salivary. pancreatic amylase and disaccharidases
(b) Bile salts, lipase and enterogasterone
(c) Pepsin, trypsin, chymotropsin, amino carboxypeptidases, dipeptidases and CCK
(d) Both (a) and (b)
Ans. d
16. Chylomicrons are
(a) lipoproteins transported by the circulatory system
(b) small branches of the lymphatic system
(c) protein-coated fat globules excreted out of epithelial cell Into a lacteal
(d) small peptides acted upon by chymotrypsin
Ans. c
17. Laxatives work in the large intestine to relieve constipation. Which of the following would probably not be an effective laxative ? A substance that
(a) contains lots of fibre
(b) promotes water absorption in the large intestine
(c) speeds up movement of material through the large intestine
(d) decreases water absorption in the large intestine
Ans. b
19. Imaging that you have eaten a meal containing the following nutrients. Which would not have to be digested before being absorbed?
(a) Protein
(b) Polysaccharide
(c) Nucleic acid
(d) Amino acid
Ans. d
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21. Which of the answers below would not work in the following sentence? ‘In order for the body to absorb and use …., they must be broken down by hydrolysis into
(a) polysaccharides; monosaccharides
(b) amino acids; proteins
(c) fats; glycerol and fatty acids
(d) disaccharides; monosaccharides
Ans. a
22. Gastric juice is in nature
(a) acidic
(b) alkaline
(c) neutral
(d) slightly alkaline
Ans. a
23. Trypsinogen is converted into active trypsin by the action of
(a) CCK
(b) enterocrinin
(c) enterokinase
(d) secretion
Ans. c
24. Which cells produces gastric enzyme?
(a) acells
(b) Oxyntic cells
(c) Chief cells
(d) Beta-cells
Ans. c
25. The process of action of bile called
(a) oxidation
(b) emuisification
(c) esterification
(d) dehydrogenation
Ans. b
26. Digestive enzyme which is not found in human pancreatic juice is
(a) nucieotidase
(b) trypsin
(c) lipase
(d) pepsin
Ans. a
27. Which teeth are used to pierce and tear the flesh?
(a) Incisors
(b) Canines
(c) Premolars
(d) Molars
Ans. b
28. Identify the type of salivary gland out of the following
(a) Lacrymal gland
(b) Islet of Lieberkuhn
(c) Sublingual
(d) Brunner’s gland
Ans. c
29. In tooth, the hardest part is considered to be
(a) enamel
(b) odontoblast layer
(c) dental tubules
(d) dentine
Ans. a
30. Name functional unit for the absorption of digested food
(a) Brunner’s gland
(b) Peyer’s patches
(c) Cryps of Lieberkuhn
(d) Villi
Ans. d
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31. The presence of vestibule is a major characteristic of
(a) mammals
(b) amphibians
(c) reptiles
(d) All of these
Ans. a
32. HCl of gastric juice is produced by
(a) oxyntic cells
(b) chief cells
(c) columnar cells
(d) goblet cells
Ans. a
33. In mammalian body, the largest gland is
(a) pancreas
(b) liver
(c) parotid
(d) submaxillary
Ans. b
34. Identify the functions performed by liver out of the following given below.
I. Detoxification II. Heat production III. Glycogenesis IV. Insulin synthesis Codes
(a) I and II
(b) Il and IV
(c) II and IV
(d) I, Il and III
Ans. d
35. Vermiform appendix is a part of
(a) stomach
(b) pancreas
(c) intestine
(d) liver
Ans. c
36. The largest oral glands are found in which of the following?
(a) Fish
(b) Amphibian
(c) Reptiles
(d) Mammal
Ans. d
37. Name the enzyme produced by the gastric glands during digestion of food.
(a) Ptyalin
(b) Trypsin
(c) Pepsin
(d) Insulin
Ans. c
38. Microvilli in intestine serve to
(a) release digestive enzyme
(b) increase membrane area for absorption
(c) protect cells from invading microorganisms
(d) establish inter-cellular contact
Ans. b
39. If pancreas is removed, the compound which remains undigested, is
(a) carbohydrate
(b) fat
(c) protein
(d) All of these
Ans. d
40. Which of the following does not produce any digestive enzyme?
(a) Mouth
(b) Liver
(c) Pancreas
(d) Gastric mucosa
Ans. b
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41. Gall bladder is absent in
(a) cat
(b) horse
(c) man
(d) dog
Ans. b
42. HCl of the gastric juice
(a) activates ptyalin and inactivates pepsin
(b) inactivates ptyalin and activates pepsin
(c) activates both ptyalin and pepsin
(d) inactivates both ptyalin and pepsin
Ans. b
43. Ptyalin prefers… media.
(a) strongly acidic
(b) slightly acidic
(c) slightly neutral
(d) strongly alkaline
Ans. b
44. Fat digestion is facilitated by
(a) bile juice
(b) pancreatic juice
(c) gastric juice
(d) None of these
Ans. a
45. Which of the following enzymes digest protein in stomach?
(a) Trypsin
(b) Pepsin
(c) Crepsin
(d) None of these
Ans. b
46. Bilirubin and biliverdin are
(a) bile salts
(b) bile pigments
(c) enzymes
(d) None of these
Ans. b
47. Gall stones cause
(a) anaemia
(b) obstructive jaundice
(c) kidney failure
(d) dysentery
Ans. b
48. In mammals, the digestion of starch starts from
(a) mouth
(b) storriach
(c) oesophagus
(d) duodenum
Ans. a
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49. If we take food rich in lime juice, then action of ptyalin on starch
(a) is enhanced
(b) is reduced
(c) is unaffected
(d) will stop
Ans. d
50. One of the digestive juices that lacks enzyme, but aids digestion is
(a) bile
(b) succus entericus
(c) chyle
(d) chyme
Ans. a
51. The contraction of gall bladder is due to
(a) gastrin
(b) secretin
(c) cholecystokinin
(d) enterogasterone
Ans. c
52. Trypsin is secreted by
(a) pancreas
(b) pituitary
(c) thyroid
(d) thymus
Ans. a
53. Which of the following is not a function of liver?
(a) Production of bile
(b) Production of insulin
(c) Glycogen storage
(d) Detoxification
Ans. b
54. A person is passing grey white faecal mater. What is not functioning properly in the body?
(a) Kidney
(b) Liver
(c) Spleen
(d) Pancreas
Ans. b
55. Emulsification is the function of
(a) bile
(b) lipases
(c) esterases
(d) proteases
Ans. a
56. Pepsin acts in
(a) basic medium
(b) acidio medium
(c) neutral medium
(d) All types of media
Ans. b
57. A woman takes dairy products, she complains of diarrhoea and stomach ache. She does not complain when she consumes food other than the dairy product. She is suffering with deficiency of which of these enzymes?
(a) Rennin
(b) Lactase
(c) Lipase
(d) Trypsin
Ans. b
58. If the chyme of a person who had orally consumed only starch as food is analysed before it enters the duodenum, it will show the presence of
(a) dextrin and maltose
(b) maltose and glucose
(c) starch, dextrin and maltose
(d) starch, dextrin and glucose
Ans. b
Multiple Choice Questions on Digestion and Absorption | Food and Digestion MCQs
60. Removal of stomach produces
(a) dumping syndrome
(b) Turner’s syndrome
(c) emphysema
(d) midget
Ans. a
61. Which one is incorrectly matched?
(a) Rennin
(b) Ptyalin
(c) Pepsin
(d) Trypsin Liver Mouth Stomach Intestine
Ans. a
62. The process of digestion proceeds in this order.
(a) Digestion → Ingestion → Solution→ Absorption → Egestion
(b) Ingestion → Digestion → Absorption→ Assimilation → Egestion
(c) Ingestion →Solution→ Absorption → Accumulation → Egestion
(d) Ingestion → Digestion→Absorption → and solution → Egestion
Ans. b
63. HCI present in the gastric juice converts
(a) pepsinogen to pepsin
(b) polypeptides to peptides
(c) disaccharides to monosaccharides
(d) prorennin to rennin
Ans. a
64. The major site of protein digestion is
(a) gullet
(b) stomach
(c) small intestine
(d) oral cavity
Ans. b
65. Just as hydrochloric acid is for pepsinogen, so is the
(a) haemoglobin for oxygen
(b) enterokinase for trypsinogen
(c) bile juice for fat
(d) glucagon for glycogen
Ans. b
