Chlorophyll is the most important pigment in the photosynthetic process of plants, it captures light radiation and transforms this form of energy into chemical energy. The light energy used for this reaction comes from sunlight and is absorbed by chlorophyll. The absorption of light energy and its transformation into energy allows plants to grow, flower and produce fruit.
Photosynthesis is important for man because when ingesting food from plants, part of the substances enters the cellular constitution and another part provides the necessary energy for activities such as growth, reproduction, etc.
During the day, plants carry out photosynthesis releasing carbon dioxide. During the night, there isn't any sunlight so the plants carry out cellular respiration releasing oxygen.
