IGNOU BBCCT 109 2026 - Name two coenzymes derived from the vitamin niacin. Write one reaction

Question

Name two coenzymes derived from the vitamin niacin. Write one reaction indicating their role.

03 Feb 2026

Answer :

Word Count : 186

Two important coenzymes derived from the vitamin niacin are Nicotinamide adenine dinucleotide (NAD+) and Nicotinamide adenine dinucleotide phosphate (NADP+). Both of these coenzymes play crucial roles in the metabolism of carbohydrates and lipids. NAD+ primarily functions in redox reactions, serving as an electron carrier in catabolic processes. In glycolysis, for example, NAD+ is reduced to NADH during the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate. This reaction is catalyzed by glyceraldehyde-3-phosphate

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