Question

what is the function of nad⁺?
a) cofactor
b) enzyme
c) inhibitord) product

Explanation:

NAD⁺ (nicotinamide adenine dinucleotide) acts as a cofactor, specifically a coenzyme, that transfers electrons and hydrogen atoms in many metabolic reactions. It is not an enzyme (which is a protein catalyst), an inhibitor (which slows enzyme activity), or a typical end product of these core reactions.

Answer:

a) Cofactor