What part of the photosynthetic cycle involves an enzyme taking a molecule of NADP and adding two electrons and one proton to it?

The part of the photosynthetic cycle that involves an enzyme adding two electrons and one proton to a molecule of NADP is known as the Calvin cycle. Specifically, this process occurs during the reduction phase, where NADP+ is reduced to NADPH. This reaction is facilitated by the enzyme ferredoxin-NADP+ reductase (FNR), which plays a crucial role in transferring electrons from photosystem I to NADP+, ultimately contributing to the formation of glucose and other carbohydrates.