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  1. For its activity, carboxypeptidase requires
    1. zinc
    2. iron
    3. niacin
    4. copper
Correct Option: 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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