QUESTION 2 Nicotinamide adenine dinucleotide is an electron carrier used in catabolism. It can be in a reduced (electron-enriched) or oxidized (electron-deficient) form. Identify the following features in the structures below. F (nicotinamide C4) G (nicotinamide N1) D (nicotinamide) E (adenine) C (diphosphate) A (complete molecule) B (complete molecule) The reduced form of nicotinamide adenine dinucleotide The part of the molecule that is derived from the vitamin niacin The site where a hydride ion (2e- + H+) will be added
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The reduced form of nicotinamide adenine dinucleotide is NADH, which has an additional hydrogen atom on the nicotinamide ring compared to the oxidized form, NAD+. Show more…
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Nicotinamide adenine dinucleotide (NAD+) and its chemical difference with nicotinamide adenine dinucleotide phosphate (NADP+). NADP+ has an additional phosphate group at the 2 position on the pentose adjacent to the adenine nicotinate moiety, rather than nicotinamide. NADP+ also has an additional pyrophosphate group, while NAD+ has an additional phosphate linked directly to the adenine ring.
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