Alga (singular of algae) is an example of an autotroph because it is capable of photosynthesis.
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Image courtesy of Corel Photography
Autotrophs are organisms that can "make their own food" from an inorganic source of carbon (carbon dioxide) given a source of energy. Most autotrophs use sunlight in the process of
to make their own food. Photosynthesis is the name of the process which autotrophs use to
convert water, carbon dioxide
, and solar energy into sugars and oxygen. Examples of autotrophs are plants and algae (shown in the picture).
Autotrophs are the producers of the food chain. The word autotroph comes from the Greek autos=self and trophe=nutrition.
Shop Windows to the Universe Science Store!Traveling Nitrogen
is a fun group game appropriate for the classroom. Players follow nitrogen atoms through living and nonliving parts of the nitrogen cycle. For grades 5-9.
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