The process of the formation of energy sources and food using light in reactions is called the light reaction of photosynthesis. In this reaction, the light energy gets absorbed.
In the light reaction of the photosynthesis, the light is absorbed by the plant cells and the electrons are used for exciting the water oxidation for producing NADPH molecules.
The electrons excite the chlorophyll pigment of the cell and are passed to the chain of the reacting complexes to form NADPH and ATP molecules that are high in energy.
Therefore, in the light reaction of the photosynthesis light is absorbed to produce ATP and NADPH.
Learn more about the light-dependent reaction here:
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