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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About Enzymes
Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.
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