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Answer on Other Biology Question for Irshad

Question #65551
Hydrochloric acid (HCL) and proteolytic enzymes produced by stomach do not digest its own wall,why?
Expert's answer
The cells lining the wall of the stomach produce mucus, which protects them from the effect of hydrochloric acid. In addition, some cells produce bicarbonate ion, which reduces acidity near the stomach wall. It protects from the effect of low pH and creates unfavorable conditions for the functioning of proteolytic enzymes. In addition, proteolytic enzymes are secreted in their inactive form and become activated by hydrochloric acid, which is produced in response to food income.

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