Question

Stomach is the right place where hydrochloric acid is required to be secreted in the gastric juice. Describe any three points to justify this statement.

Answer 1

(i) HCI inactivates the salivary amylase and prevents further breakdown of disaccharidecarbohydrate. 

(ii) It kills micro-organisms and lowers the pH of stomach between 1.5-2.5 (very acidic). 

(iii) Pepsinogen (inactive precursor of pepsin), does not possess any threat to stomach and in presence of HCI it is converted into pepsin (principal protease of stomach)