Photosynthesis: Involves plants using sunlight to produce energy for their internal processes. (Flowers, trees...)
Chemosynthesis: Involves using chemical reactions to produce energy and therefore does not need sunlight to live. These chemical reactions provide the energy needed for the organism to function. (Bacteria on the bottom of the ocean where there is no sunlight)
Cellular Respiration: Involves cells converting biochemical energy such as food into energy the body can use. (Humans)
Differences: Photosynthesis uses Sunlight for energy, Chemosynthesis uses chemical reactions for energy, and Cellular Respiration uses biochemical sources for energy.
