Question

Assertion- pH of the stomach is more than 7.
Reason- Stomach contains oxyntic cells that produce HCl.

• A. Both assertion and reason are true and the reason is the correct explanation of the assertion
• B. Both assertion and reason are true but the reason is not the correct explanation of the assertion
• C. The assertion is false but the reason is true
• D. Both assertion and reason are false

Answer 1

The correct option is C The assertion is false but the reason is true

Oxyntic cells (also called parietal cells) are the epithelial cells of the stomach. They produce HCl in the stomach which makes the pH of the stomach less than 7. The acidic nature of gastric juice activates the inactive pepsinogen and converts it into an active enzyme called pepsin. It breaks down complex protein molecules into simpler forms. Therefore, the assertion is incorrect. The reason that oxyntic cells present within the stomach produce HCl is correct.