What happens after sunlight hits photosystem ll?

After sunlight hits Photosystem II (PSII), the absorbed light energy excites electrons in chlorophyll molecules, initiating the process of photosynthesis. This energy drives the splitting of water molecules (photolysis), releasing oxygen as a byproduct and providing electrons to replace those lost by chlorophyll. The excited electrons are then transferred through a series of proteins in the electron transport chain, leading to the production of ATP and NADPH, which are essential for the Calvin cycle.