| A | B |
|---|
| photosynthesis | the process by which a cell captures energy in sunlight and uses it to make food |
| autotroph | an organism that makes its own food |
| heterotroph | an organism that cannot make its own food |
| pigment | colored chemical compounds that absorb light |
| chlorophyll | captures light energy and uses it to power the second stage of photosynthesis |
| stomata | small openings on the undersides of leaves through which carbon dioxide enters the plant |
| respiration | the process by which cells obtain energy from glucose |
| fermentation | an energy releasing process that does not require oxygen |
