Which one of the following is not a digestive enzyme in the human systems?
Reviewed by Dalvoy
UPSC Civil Services preparation
- ATrypsin
- BGastrinCorrect
- CPtyalin
- DPepsin
Explanation
Gastrin is a hormone, not a digestive enzyme. It is produced in the stomach and stimulates the secretion of gastric acid and pepsinogen, thus regulating the digestive process. It does not directly break down food.
Trypsin is a protease enzyme that digests proteins in the small intestine.
Ptyalin (also known as salivary amylase) is an enzyme that digests carbohydrates (starch) in the mouth.
Pepsin is a protease enzyme that digests proteins in the stomach.
Therefore, Gastrin is the one that is not a digestive enzyme.
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