Moderate

Zinc ion is attached at the active site of the enzyme carboxypeptidase. The zinc ion functions as:

Correct answer: B. An activator

  • A. A coenzyme molecule
  • B. An activator
  • C. An inhibitor molecule
  • D. Controller of Allosteric site

Explanation

The zinc ion serves as an activator in the case of carboxypeptidase. Carboxypeptidase is a metalloenzyme, which means it requires a metal ion cofactor for its catalytic activity. In the case of carboxypeptidase, the zinc ion is essential for the enzyme's function.

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