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Digestion and Absorption · Question 55

AIPMT 2002MCQEasy📈 Topic in 25% papers+4−1
1

Hydrolytic enzymes which act at low pH are called

  1. proteases
  2. -amylases
  3. hydrolases
  4. peroxidases.

Answer

(1) proteases

Solution

As per NCERT, HCl of the gastric juice provides the acidic pH (pH 1.8) optimal for pepsin, the proteolytic enzyme of the stomach.

⇒ Pepsin (a protease) acts at low pH and converts proteins into proteoses and peptones.

∵ Salivary -amylase acts at about pH 6.8, and peroxidases are not hydrolytic enzymes.

∴ Hydrolytic enzymes which act at low pH are proteases.

Answer: (1)

Out of syllabusAIPMT 2002

Keep practising — Digestion and Absorption

2

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
3

In mammals milk is digested by the action of

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

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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