any organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists.
photoautotroph
any organism that derives its energy for food synthesis from light and is capable of using carbon dioxide as its principal source of carbon.
chloroplast
a plastid containing chlorophyll.
chlorophyll
the green coloring matter of leaves and plants, essential to the production of carbohydrates by photosynthesis,