| A | B |
|---|
| energy | the ability to do work |
| work | the ability to move or change matter |
| autotroph | produces its own food |
| hetertroph | relies on others for food |
| ATP | energy currency of the cell |
| reduction | gaining an electron |
| oxidation | losing an electron |
| photosynthesis | turning light energy into a usable form of energy |
| pigment | a molecule that absorbs specific wavelengths |
| chlorophyll | green pigment in photosynthesis |
| chloroplast | organelle where photosynthesis occurs |
| thylakoid | in chloroplast, contains photosynthetic pigments |
| stroma | gel-like area around thylakoids |
| grana | stacks of thylakoids |
| photosystems | areas of chloroplast that collect light |
| Calvin cycle | the carbon fixing cycle |
| cellular respiration | process of breaking down food for energy |
| aerobic respiration | breaking down pyruvate in the presence of oxygen |
| anaerobic respiration | breaking down pyruvate in the absence of oxygen |
| alcoholic fermentation | type of anaerobic respiration ending with ethanol and carbon dioxide |
| Krebs cycle | series of oxidation reactions in aerobic respiration |
| lactic acid fermentation | type of anaerobic respiration ending with lactic acid |
