| Section2 = | Section3 = }} Nicotinamide adenine dinucleotide phosphate (NADP+, in older notation TPN) is used in anabolic reactions, such as lipid and nucleic acid synthesis, which require NADPH as a reducing agent. NADPH is the reduced form of NADP+. In plants In chloroplasts, NADP is reduced by ferredoxin-NADP+ reductase in last step of the electron chain of the light reactions of photosynthesis. The NADPH produced is then used as reducing power for the biosynthetic reactions in the Calvin… (More on Nadph)