BIO NMDCAT BIOLOGICAL MOLECULES

nmdcat.online June 27, 2026

A cofactor that is tightly and permanently bound to its apoenzyme is referred to as a

A. Coenzyme

B. Prosthetic group

✓

C. Zymogen

D. Substrate

📝 Explanation

A prosthetic group is a non-protein component that is covalently or very tightly, permanently bound to an enzyme. A coenzyme is an organic cofactor (often a vitamin derivative) that binds loosely and transiently. A zymogen is an inactive enzyme precursor.

📖 Additional Information

Coenzyme
Prosthetic group
Zymogen
Substrate

A prosthetic group is a non-protein component that is covalently or very tightly, permanently bound to an enzyme. A coenzyme is an organic cofactor (often a vitamin derivative) that binds loosely and transiently. A zymogen is an inactive enzyme precursor.

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