Photosynthesis is the process by which mostly plants and other organisms use sunlight to make food. It uses sunlight to turn carbon dioxide into sugars the cell can use for energy. The energy from photosynthesis comes from light. Light energy is converted to chemical energy by chlorophyll. There are two sets of reactions, light dependent and light independent. Photosynthesis does not just occur in plants only, it also occurs in many kinds of algae, protists, and bacteria in order to get food. Photosynthesis is the single most important chemical process on the earth. Almost all plants need sunlight in order to survive. Plants produce oxygen during photosynthesis and utilize carbon dioxide. All people and animals need oxygen in order to survive.
