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Which is not true about coenzyme and pro...

Which is not true about coenzyme and prosthetic group?
(a) Both are required for enzyme action
(b) Both are separated from enzymes
(c) Both are organic compounds
(d) Both are not polypeptides

A

Both are required for enzyme action

B

Both are separated from enzymes

C

Both are organic compounds

D

Both are not polypeptides.

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statement is not true about coenzymes and prosthetic groups, we need to analyze each option carefully. ### Step-by-Step Solution: 1. **Understanding Coenzymes and Prosthetic Groups**: - Coenzymes and prosthetic groups are both types of cofactors that assist enzymes in catalyzing reactions. - Cofactors are non-protein components that are essential for the activity of enzymes. 2. **Analyzing Each Option**: - **Option (a)**: "Both are required for enzyme action." - This statement is true. Both coenzymes and prosthetic groups are necessary for the proper functioning of enzymes. - **Option (b)**: "Both are separated from enzymes." - This statement is not true. Coenzymes are loosely bound and can be separated from the enzyme, but prosthetic groups are tightly bound to the enzyme and cannot be easily separated. - **Option (c)**: "Both are organic compounds." - This statement is generally true. Coenzymes are often organic molecules, while prosthetic groups can also be organic in nature. - **Option (d)**: "Both are not polypeptides." - This statement is true. Neither coenzymes nor prosthetic groups are polypeptides; they are non-protein molecules. 3. **Conclusion**: - The statement that is not true is **Option (b)**: "Both are separated from enzymes." This is incorrect because prosthetic groups are tightly bound to enzymes. ### Final Answer: **(b) Both are separated from enzymes.**
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