Q. 3. What is the role of the acid in our stomach ?
The Hydrochloric acid present in our stomach has 3 main roles.
(i) It dissolves bits of food which have entered.
(ii) It provides an acidic medium which is essential for the activation of the enzyme pepsin essential for protein digestion.
(iii) The acid kills bacteria present in the stomach.
The hydrochloric kill the bacteria mucus protect the inner lining in stomach