An organism that uses energy, such as light, to synthesize organic molecules from inorganic substances. The organic molecules may be used for food. These make their own food.
autotroph
An organism that is not able to make its own food.
heterotroph
A series of chemical reactions that convert radiant energy (light energy) into chemical energy. The chemical energy is stored in the bonds of organic compounds (usually glucose). This process occurs in the presence of chlorophyll.
photosynthesis
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