Question

nicotinamide adenine dinucleotide (nad) is a coenzyme that carries high - energy electrons released by the catabolism of macronutrients within the cells. nicotinamide adenine dinucleotide is the coenzyme form of ________. multiple choice thiamin niacin riboflavin vitamin b - 6

Explanation:

Niacin (vitamin B3) has two coenzyme forms: nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP). These coenzymes play crucial roles in energy metabolism, acting as electron carriers in redox reactions during the catabolism of macronutrients. Thiamin (vitamin B1) forms thiamin pyrophosphate (TPP), riboflavin (vitamin B2) forms flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), and vitamin B - 6 forms pyridoxal phosphate (PLP). None of these other vitamins have NAD as their coenzyme form.

Answer:

niacin