Which organisms make their food through photosynthesis?
Geography · High School · Thu Feb 04 2021
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Organisms that make their food through the process of photosynthesis are primarily plants, algae, and some bacteria, including cyanobacteria. These organisms are known as autotrophs because they can produce their own food from simple inorganic substances like carbon dioxide (CO2) and water (H2O), using sunlight as an energy source.
Photosynthesis mainly occurs in the chloroplasts of plant cells and the specialized cells or structures of algae and bacteria. In plants and algae, chlorophyll—a green pigment—captures light energy, which is then used to convert CO2 and water into glucose, a type of sugar that serves as an energy and carbon source. Oxygen (O2) is also released as a byproduct of the process, contributing to the oxygen content of the Earth's atmosphere.