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Digestion and Absorption

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Scurvy is due to the deficiency of

  1. retinol

  2. calciferol

  3. thiamine

  4. ascorbic acid


Correct Option: D
Explanation:

Scurvy is due to the deficiency of ascorbic acid.

In ruminants, the chamber of stomach which secretes digestive enzymes and HCl is

  1. rumen

  2. reticulum

  3. omasum

  4. abomasum


Correct Option: D
Explanation:

The abomasum is the “true” stomach, secreting HCl and proteases. The microorganisms are killed by the HCl, digested by the proteases and passed on to the small intestine for further digestion.

Which of the following is a non-essential amino acid?

  1. Isoleucine

  2. Leucine

  3. Tyrosine

  4. None of these


Correct Option: C
Explanation:

Tyrosine is a non-essential amino acid.

Calorific value of fat is

  1. 4.2 kcal/gram

  2. 9.5 kcal/gram

  3. 4.1 kcal/gram

  4. 5.1 kcal/gram


Correct Option: B
Explanation:

Fats yield 9.5 kcal/gram, carbohydrates 4.2kcal/gram and proteins about 4.1 kcal/gram.

The chemical name of vitamin D is

  1. retinol

  2. calciferol

  3. tocopherol

  4. menadione


Correct Option: B
Explanation:

The chemical name of vitamin D is calciferol.

Citrus fruits and amla (gooseberry) are the chief source of vitamin .........

  1. ascorbic acid

  2. retinol

  3. calciferol

  4. tocopherol


Correct Option: A
Explanation:

The main sources of vitamin C or ascorbic acid are citrus fruits, gooseberries, tomatoes and potatoes.

pH of pancreatic juice is

  1. 7

  2. 2

  3. 1

  4. 8.9


Correct Option: D
Explanation:

pH of pancreatic juice is 8.9.

The ruminant stomach has four parts, but camel lacks one part, i.e.

  1. omasum

  2. rumen

  3. reticulum

  4. abomasum


Correct Option: A
Explanation:

Camel and deer lack omasum.

Anti-xerophthalmia vitamin is .......

  1. vitamin D

  2. vitamin E

  3. vitamin K

  4. vitamin A


Correct Option: D
Explanation:

Anti-xerophthalmia vitamin is vitamin A.

Coprophagus animals eat ...........

  1. fruits

  2. own faeces

  3. blood

  4. fishes


Correct Option: B
Explanation:

Coprophagus animals eat own faeces.

Bring out the matching pair.

  1. Rennin-lipid

  2. Trypsin-starch

  3. Amylase-starch

  4. Maltase-lactose


Correct Option: C
Explanation:

Amylase digests starch.

Gastric juice contains ........

  1. pepsin, lipase and rennin

  2. trypsin, lipase and rennin

  3. trypsin, pepsin and lipase

  4. trypsin, pepsin and rennin


Correct Option: A
Explanation:

Gastric juice contains pepsin, lipase and rennin.

Pernicious anaemia is due to the deficiency of vitamin

  1. thiamin

  2. riboflavin

  3. niacin

  4. cyanocobalamin


Correct Option: D
Explanation:

Pernicious anaemia is due to the deficiency of vitamin cyanocobalamin.

Which enzyme in duodenum activates pancreatic enzyme trypsinogen?

  1. Rennin

  2. Chymotrypsin

  3. Carboxypeptidase

  4. Enteropeptidase


Correct Option: D
Explanation:

Trypsinogen is activated by an enzyme called enterokinase or enteropeptidase, which is produced by cells lining the duodenum.

In mammals, Brunner’s glands are present in submucosa coat of

  1. oesophagus

  2. duodenum

  3. ileum

  4. stomach


Correct Option: B
Explanation:

In mammals, Brunner’s glands are present in submucosa coat of duodenum.

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