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Question

Which of the following statement is not true :-

A
Co-enzymes are organic compound
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B
Association between apoenzyme and co-enzyme is permanent
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C
NADP contain the vitamin niacin
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D
Prosthetic group binds tightly to the apoenzyme
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Solution

The correct option is D Association between apoenzyme and co-enzyme is permanent
Association between apoenzyme and co enzyme is not permanent.
Co-enzymes are non-protein organic molecules which are mostly derivatives of vitamins soluble in water by phosphorylation. They bind apoenzyme to proteins to produce an active holoenzyme. A holoenzyme refers to a catalytically active enzyme that consists of both apoenzyme (enzyme without its cofactor(s) and cofactor.
So, the correct option is 'Associated between apoenzyme and co-enzyme is permanent'.

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