Question

Question 52:
(a) What is the role of hydrochloric acid in our stomach ?
(b) What is the function of enzymes in the human digestive system ?

Lakhmir Singh Biology Class 10

Answer 1

answer
1. role of HCL is to kill the bacterias present in food
2. function of enzymes is to break down complex molecules to simpler ones
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Answer 2

The role of HCL in stomach are as followed :
1. To kill the bacteria present with food material .
2. It activate the enzyme pepsin for the digestion of protein.

(b) the enzyme is the bio - catalyst , which help in the digestion of food without involving itself in the food , for eg. the enzyme saliva amylase ( which is present in mouth cavity , digest the carbohydrates . )