Question

Which of the following is/are the function(s) of the acid produced in the stomach?

• A. Protection from microorganisms
• B. Activation of inactive pepsinogen
• C. Breakdown of complex lipids
• D. Activation of inactive pepsin

Answer 1

Answer: (A), (B)

Activation of inactive pepsinogen

Gastric glands are present in the wall of stomach and their secretions are called gastric juices. Gastric Juice contains HCl, pepsinogen and mucus.
HCl performs the following functions:
$\to$ Converts the inactive pepsinogen into active pepsin
$\to$ Kills the microorganisms that enter along with the food.