That's a great question. Plants use
photosynthesis to create the sugars they use for
energy. Plants are called "primary producers"
because they are the base of the food chain. All
organisms who cannot convert chemical or light
to usable energy depend upon organisms that can,
like plants. Photosynthesis takes carbon
dioxide (a gas in the atmosphere) and makes
sugars using that carbon. Plants use these
sugars for energy, just like people.
Photosynthesis also releases oxygen that we
breathe. Plants use oxygen too, to metabolize
the sugars they create.
Click Here to return to the search form.