From which component of the light-dependent reactions does nadph form most directly?
photosystem ii
photosystem i
cytochrome complex
atp synthase

The correct answer is option - photosystem I

Explanation:

The photosystem is a biochemical procedure or mechanism in which chlorophyll absorbs the light energy during photosynthesis. There are two photosystem - photosystem I and photosystem II.  

The photosystem I get electrons that travel through ETC or electron transport chain, which reduces NADP+ to NADPH molecule. The ETC removes the protons to the lumen from the thylakoid membrane.

Thus, the correct answer is option - photosystem I

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.