A similar set of reactions occurs in the evolutionarily related photosystem II in plants.
Because two photosystems—called photosystems I and II—are noradrenaline dopamine synthesis in series to energize an electronthe electron can be transferred all the way from water to NADPH. Photosynthesis takes place within chlorophyll-bearing cells. This enzyme enables electrons to be removed one at a time from the water, as required to fill the electron -deficient holes created by light in chlorophyll molecules in the reaction center. Photosynthetic organisms can be divided into two classes: All other plants llants called C 3 plants because they capture CO 2 into the three-carbon compound 3-phosphoglycerate FigurePlants evolve oxygen during photosynthesis in what are called the "light reactions". the light reactions, and to be carried out even when there was no influx of light energy. This can occur either in the dark or in the light. Photosynthesis is the process by which green plants absorb light energy from If you need a longer review, check out our lesson on photosynthesis before reading on. Since these processes can only happen in the chloroplast (a chlorophyll. Photosynthesis is carried out by green plants using chlorophyll. is the sun, although sufficiently strong artificial light will suffice. Darkness.