| A | B |
|---|
| photosynthesis | the process by which a cell captures energy in sunlight and uses it to make food and produce almost all the Earth's oxygen |
| autotroph | an organism that makes its own food |
| heterotroph | an organism that cannot make its own food |
| pigments | colored chemical compounds that absorb light |
| chlorophyll | the main photosynthetic pigment in chloroplasts--captures energy |
| chloroplasts | green organelles inside plant cells |
| 1st stage | the stage of photosynthesis in which chloroplasts capture light energy |
| 2nd stage | the stage of photosynthesis in which the cell uses captured energy to produce sugars |
| stomata | small openings on the undersides of hte leaves through which carbon dioxide enters the plant |
| water and carbon dioxide | raw materials needed for plant to convert sun's energy into sugars |
| sugar and oxygen | products of photosynthesis |
| arrow | in photosynthesis equation, means "yields" or "results in" |
