Question

The cofactor of the enzyme carboxypeptidase is

• A. copper
• B. iron
• C. zinc
• D. manganese

Answer 1

The correct option is C

zinc

The correct option is C.

Explanation of the correct option:

1. A protein and an amino acid are created when the protein and a water molecule react.
2. The pancreas secretes the enzyme carboxypeptidase A, which is employed to accelerate the hydrolysis reaction.
3. Carboxypeptidase is a proteolytic enzyme.
4. The carboxypeptidase enzyme has been shown to require zinc as a cofactor, also referred to as a coenzyme.
5. A cofactor is a non-protein part of the holoenzyme, e.g. metal ions, coenzymes, or prosthetic groups.

Final answer: The cofactor of the enzyme carboxypeptidase is zinc.