Mineral Nutrition Question 9

9. For its activity, carboxypeptidase requires

(a) zinc

(b) iron

(c) niacin

(d) copper

Show Answer

Answer : a

Hints & Solution

(a) Carboxypeptidase is an exopeptidase enzyme secreted by the pancreas that acts only on the peptide linkage of a terminal amino acid containing a free carboxyl group. Zinc is a cofactor for carboxypeptidase. In Digestion of carboxypeptidase, requires zinc for its protein degrading action.



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