Nicotinamide Adenine Dinucleotide Phosphate Hydrogen (NADPH) The full form of NADPH is nicotinamide adenine dinucleotide phosphate hydrogen. It plays a crucial role in many of the chemical reactions that make up the procedure of the photosynthesis. NADPH is a product of the first level of photosynthesis. noun ˌen- (ˌ)ā- (ˌ)dē- (ˌ)pē-ˈāch : the reduced form of NADP Examples of NADPH in a Sentence Recent Examples on the Web In people with active CGD, genetic mutations are thought to cause a defect in a key enzyme, NADPH oxidase. Isabella Cueto, STAT, 10 Oct. 2023 NADP + Definition. NADP + is a coenzyme that functions as a universal electron carrier, accepting electrons and hydrogen atoms to form NADPH, or nicotinamide adenine dinucleotide phosphate. NADP + is created in anabolic reactions, or reaction that build large molecules from small molecules. NADPH donates the hydrogen (H) and associated Nicotinamide adenine dinucleotide ( NAD) is a coenzyme central to metabolism. [3] Found in all living cells, NAD is called a dinucleotide because it consists of two nucleotides joined through their phosphate groups. One nucleotide contains an adenine nucleobase and the other, nicotinamide. xaNcq4.