Multiple choice

Pepsin is a protein-digesting enzyme in our stomach. But this enzyme is mostly secreted as a pro-enzyme called pepsinogen. Why is it secreted in this inactive form?

  1. Active pepsin will digest the wall of stomach in the absence of food.

  2. Active pepsin gets inactivated fast.

  3. Hydrochloric acid in stomach will destroy pepsin.

  4. Active pepsin will break down fats in food.

  5. Inactive pepsinogen gives time for food to reach the stomach by peristalsis.
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A Correct answer
Explanation

Active pepsin will digest the wall of the stomach in the absence of food as pepsin is a protein digesting enzyme.

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