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Digestion and Absorption · Question 50

AIPMT 2004MCQEasy📈 Topic in 25% papers+4−1
1

The richest sources of vitamin B12 are

  1. goat's liver and Spirulina
  2. chocolate and green gram
  3. rice and hen's egg
  4. carrot and chicken's breast.

Answer

(1) goat's liver and Spirulina

Solution

Vitamin B12 (cyanocobalamin) is synthesised only by microorganisms (bacteria, cyanobacteria).

⇒ Animals store it mainly in the liver, so liver (e.g. goat's liver) is a very rich source.

⇒ Spirulina, a cyanobacterium used as single cell protein, is also rich in vitamin B12.

∵ Plant foods such as chocolate, green gram, rice and carrot contain practically no vitamin B12 (egg and chicken contain only small amounts).

∴ The richest sources are goat's liver and Spirulina.

Answer: (1)

Out of syllabusAIPMT 2004

Keep practising — Digestion and Absorption

2

Which one of the following pairs is not correctly matched?

  1. Vitamin B12 - Pernicious anaemia
  2. Vitamin B6 - Convulsions
  3. Vitamin B1 - Beri-beri
  4. Vitamin B2 - Pellagra
Out of syllabusAIPMT 2004
3

Which one of the following pairs is not correctly matched?

  1. Vitamin C – Scurvy
  2. Vitamin B2 – Pellagra
  3. Vitamin B12 – Pernicious anaemia
  4. Vitamin B6 – Beri-beri
Out of syllabusAIPMT 2003
4

During prolonged fasting, in what sequence are the following organic compounds used up by the body?

  1. First carbohydrates, next fats and lastly proteins
  2. First fats, next carbohydrates and lastly proteins
  3. First carbohydrates, next proteins and lastly lipids
  4. First proteins, next lipids and lastly carbohydrates
Out of syllabusAIPMT 2003
5

Stool of a person is whitish grey coloured due to malfunction of which of the following organs?

  1. Pancreas
  2. Spleen
  3. Kidney
  4. Liver
Out of syllabusAIPMT 2002
6

Hydrolytic enzymes which act at low pH are called

  1. proteases
  2. -amylases
  3. hydrolases
  4. peroxidases.
Out of syllabusAIPMT 2002
7

Which one of the following is correctly matched?

  1. Vitamin E – Tocopherol
  2. Vitamin D – Riboflavin
  3. Vitamin B – Calciferol
  4. Vitamin A – Thiamine
Out of syllabusAIPMT 2001
8

In mammals milk is digested by the action of

  1. rennin
  2. amylase
  3. intestinal bacteria
  4. invertase
Out of syllabusAIPMT 2000
9

A person is eating boiled potato; his food contains the component

  1. cellulose which is digested by cellulase
  2. starch which is not digested
  3. lactose which is not digested
  4. DNA which can be digested by pancreatic DNase
Out of syllabusAIPMT 2000

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