Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis in green plants harnesses the energy of sunlight to convert carbon dioxide, water, and minerals into organic compounds and gaseous oxygen.

Photosynthesis is a process used by plants for the preparation of their food namely the starch and glucose.
In this process the light energy is converted into chemical energy.
This process involves the absorption of water from the roots and the water is transported by the stem and CO2 from air and the green pigment chrophyll present in chloroplast of the plant cell in leaves.
In greek photo means light and synthesis is putting together.
Carbon dioxide is converted into sugar for carbon fixation.
carbon dioxide+ water+ light____>carbohydrate +oxygen+water

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