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Chlorophyll is vital for photosynthesis, which allows plants to absorb energy from light. Chlorophyll molecules are specifically arranged in and around photosystems that are embedded in the thylakoid membranes of chloroplasts. In these complexes, chlorophyll serves two primary functions.hen sunlight returns in the spring and summer, the plants flourish in high concentrations. Chlorophyll (also chlorophyl) is a term used for several closely related green pigments found in cyanobacteria and the chloroplasts of algae and plants.
Report Abuse. Well the chlorophyll helps the plant go through photosynthesis by absorbing the the light into the plant and transferring it into food. The definition for chlorophyll is the pigment in green plants that absorbs solar energy.Now chlorophyll a is important because chlorophyll is the molecule found in all plant cells and therefore its concentration is what is reported during chlorophyll analysis.uring this process of photosynthesis, chlorophyll produces energy, in the form of sugary carbohydrates, which will power all of the plant's essential growth and development. This amazing molecule also gives plants their distinctive green color.