What is photosynthesis simple definition?

Photosynthesis is a biological process used by plants, algae, and some bacteria to convert light energy from the sun into chemical energy in the form of organic compounds like glucose. This process involves the absorption of light by the pigments chlorophyll and other accessory pigments, which then use the energy to drive a series of biochemical reactions that convert carbon dioxide and water into sugar and oxygen. The oxygen is released into the atmosphere, while the sugar is used by the plant for energy and growth. Photosynthesis is vital to the survival of plants and many animals, as it provides the primary source of organic nutrients and oxygen for the planet.