Question

pepsinogen is secreted by which cells?​

Answer 1

Answer:

Chief cells secrete digestive enzymes that cleave the proteins in food into smaller pieces. The main enzyme secreted by chief cells is pepsin. Pepsin is secreted as an inactive enzyme called pepsinogen. Pepsinogen becomes active when it encounters an acidic environment and is cut apart.

Explanation:

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Answer 2

It is secreted by the zymogen cells of mucosa in the stomach.

Pepsinogen is an inactive form of pepsin. But it is activated to pepsin when comes in contact with acidic medium. So, after its secretion the gastric acids convert it to the enzyme Pepsin. So, that pepsin can work on proteins to hydrolyze them.