Topic: Glycolysis and fermentation· Plant Physiology

What is the role of NAD^+ in cellular respiration ?

1. It functions as an enzyme.

2. It is a nucleotide source for ATP synthesis.

3. It functions as an electron carrier.

4. It is the final electron acceptor for anaerobic respiration.

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Answer: 3. It functions as an electron carrier.

NAD\(^+\) is a coenzyme that accepts electrons and hydrogen to become NADH, so it is an electron carrier.

It is not an enzyme. The final acceptor in aerobic respiration is oxygen; in anaerobic respiration it is an organic or inorganic molecule, not NAD\(^+\).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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What is the role of NAD^+ in cellular respiration ?

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