OESOPHAGUS STOMACH
BODY OF STOMACH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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amylase
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pepsin
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gastric lipase
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tyrpsin
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Detailed explanation-1: -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. A low pH (1.5 to 2) activates pepsin.
Detailed explanation-2: -Pepsin cleaves peptide bonds in the amino-terminal side of the cyclic amino acid residues (tyrosine, phenylalanine, and tryptophan), breaking the polypeptide chains into smaller peptides (Fange and Grove, 1979).
Detailed explanation-3: -pepsin, the powerful enzyme in gastric juice that digests proteins such as those in meat, eggs, seeds, or dairy products. Pepsin is the mature active form of the zymogen (inactive protein) pepsinogen. Pepsin was first recognized in 1836 by the German physiologist Theodor Schwann.
Detailed explanation-4: -Pepsin cleaves the 44 amino acids from pepsinogen to make more pepsin. So the correct answer is ‘(a) Proteins in the stomach’.