Question

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

• A. It is the final electron acceptor for anaerobic respiration.
• B. It functions as an enzyme.
• C. It is a nucleotide source for ATP synthesis.
• D. It functions as an electron carrier.

Answer 1

Answer: (D)

It functions as an electron carrier.

Answer 2

NAD is the electron carrier that picks the electron from other molecules and reduced to form NADH. It is the used as reducing agent to donate electrons.