| Term | Definition |
| Absorption Spectrum | Characteristic pattern of wavelengths, or colors, of light absorbed by a particular pigment. |
| Aerabic Respiration | Cellular respiration that uses oxygen, sequentially releasing energy and storing it in ATP |
| Alcoholic Fermentation | Anaerobic process whereby enzymes break down glucose into ethanol and CO2 and transfer energy to ATP. |
| Anaerobic | Processes that occur in the absence of oxygen ( for example, lactic acid fermentation and alcoholic fermentation). |
| ATP | Adenosine triphosphate; energy-carrying molecule, which, when hydrolyzed to ADP and inorganic phosphate, releases free energy. |
| Calvin Cycle | Set of reactions in photosynthesis in which carbon dioxideis converted into sugars; takes place in the stroma. |
| Carotenoid | Pigment molecules usually yellow, orange, and red that interact with chlorophylls to absorb light energy needed in photosynthesis. |
| Endergonic | S. Chemical reaction requiring free energy in addition to enzymes and activation energy. |
| Exergonic | S. |
| Free Energy | S. |
| Grana | S. |
| Lactic Acid Fermentation | S. |
| Light Reactions | S. |
| Stroma | S. |
| Visible Spectrum | S. |
| Wavelength | S. |