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Which of the following is not a digestive enzyme in the human system?
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- Trypsin
- Gastrin
- Ptyalin
- Pepsin
Correct Option: B
Gastrin is a peptide hormone that stimulates secretion of gastric acid (HCI) by the parietal cells of the stomach and aids in gastric motility. Trypsin, Ptyalin and Pepsin are digestive enzymes. Trypsin and pepsin are proteolytic enzymes, Ptyalin or amylase is a starch degrading enzyme.
