| A | B |
|---|
| photosynthesis | the process by which plants and some other organisms capture the energy in sunlight and use it to make food |
| pigment | a colored chemical compound that absorbs light |
| chlorophyll | a green pigment found in the chloroplasts of plants, algae, and some bacteria |
| fermentation | the process by which cells break down molecules to release energy without using oxygen |
| autotroph | an organism that makes its own food |
| heterotroph | an organism that cannot make its own food |
| respiration | the process by which cells break down simple food molecules to release the energy they contain |
| stomata | small openings on the underside of a leaf through which oxygen and carbon dioxide can move |
