Pepsin is a

A. Hormone

B. Enzyme

C. Vitamin

D. Mineral

Answer: Option B

Solution(By Examveda Team)

Pepsin is a stomach enzyme that serves to digest proteins found in ingested food. Gastric chief cells secrete pepsin as an inactive zymogen called pepsinogen. Parietal cells within the stomach lining secrete hydrochloric acid that lowers the pH of the stomach.

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C. decrease in thickness of ozone layer in stratosphere

D. increase in the thickness of ozone layer in troposphere