A) pepsin
B) renin
C) trypsin
D) all of these.
Correct Answer: C
Solution :
: Trypsin is a proteolytic enzyme secreted by the pancreas. Its initial form is trypsinogen, which is inactive and is converted to the active form by enterokinase in the intestine. It catalyses the hydrolysis of peptide bonds in partly digested proteins and some native proteins, the final products been amino acids and various polypeptides. Pepsin is present in human stomach, works in acidic medium and acts an endopeptidase in protein breakdown. Rennin is an enzyme that coagulates milk, present in gastric juice of ruminants. It is not present in the human stomach.
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