| Term | Definition |
| chloro- | green |
| chlorophyll | A green pigment found in the chloroplasts of plants, algae, and some bacteria |
| chloroplast | A structure in the cells of plants and some other organisms that capture energy from sunlight and use it to produce food |
| cyto- | cell |
| fermentation | The process by which cells break down molecules to release energy without using oxygen |
| photo- | light |
| photosynthesis | The process by which plants and some other organisms capture light energy and use it to make food from carbon dioxide and water |
| -phyll | leaf |
| pigment | A colored chemical comound that absorbs light, producing color |
| product | A substance obtained from a chemical reaction |
| reactant | The raw materials needed for a chemical reaction |
| respiration | The process by which cells break down simple food molecules to release the energy they contain |
| stomata | The small openings on the undersides of most leaves through which oxygen and carbon dioxide can move |
| -synthesis | to put together |
| -troph | nourish, feed |