The process that is represented by the arrow is the movement of electrons along the electron transport chain.
The photosystem is a mechanism in plants in which chlorophyll absorbs light energy for the photosynthesis process. It's found in the thylakoid membrane of plants (as well as cyanobacteria and algae), which itself is located inside the chloroplasts.
This biochemical mechanism utilizes light to energize electrons that are used in the electron transport chain. It results in high-energy molecules for use in the dark reactions of photosynthesis.
The question above seems not to be complete. The completed one is as follows:
In both photosystem I and photosystem II, light energy is used to excite electrons. The two photosystems were named in the order of their discovery, and not in the order of their work in the light-dependent reactions. Photosystem II comes first in the sequence of events that moves electrons from water molecules to their destination, NADP+. Hydrogen ions travel with the electrons, and they combine with NADP+ to form NADPH. The process is summarized in this diagram.
In the diagram, an arrow leads from the splitting of water, to the two photosystems, and then to NADP+. What process is represented by this arrow?
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