Q. Consider the following statements : (A) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group. (B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme. Select the correct option.
A) Both (A) and (B) are true.
B) (A) is true and (B) is false.
C) Both (A) and (B) are false.
D) (A) is false and (B) is true.
Explanation
[Solution] Only a tightly bound organic cofactor is a prosthetic group (metal ions are separate), and the complete active enzyme is a holoenzyme, not apoenzyme. Per the source key, both are false. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.