what are three part of the light reactions of photosynethesis?

Question

and also what is the overall goal of the light reaction of photosynthesis ?

Answer 1

overall goal is progression

Answer 2

photosynthesis generally, is the synthesis of sugar from light, carbon dioxide and water, with oxygen as a waste product. It is arguably the most important biochemical pathway known; nearly all life depends on it. It is an extremely complex process, comprised of many coordinated biochemical reactions. It occurs in higher plants, algae, some bacteria, and some protists, organisms collectively referred to as photoautotrophs.