Assertion :Coenzyme nicotinamide adenine dinucleotide (NAD) and NADP contain a vitamin. Reason: The association of co-enzyme with apoenzyme is enduring.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is C Assertion is correct but Reason is incorrect
Co-enzymes are also organic compounds but their association with the apoenzyme is only transient, usually occurring during the course of catalysis. Co-enzymes serve as co-factors in a number of different enzyme catalysed reactions. The essential chemical components of many coenzymes are vitamins,e.g., coenzyme nicotinamide adenine dinucleotide (NAD) and NADP contain the vitamin niacin.
So, the correct answer is 'Assertion is correct but Reason is incorrect'.

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