When does photosynthesis occur?

Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

The plant contains packets of a green pigment called chlorophyll that carries out this process. During photosynthesis water and carbon dioxide from the air are converted into sugars that nourish the plant. At the same time the plant releases oxygen into the air.

Fact File:

The process of photosynthesis takes place mostly in the leaves of a plant. Leaves are large and flattened so that a large area is exposed to sunlight.


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