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Biol 1406 Ch. 9
Cellular Respiration and Photosynthesis
| Term | Definition |
|---|---|
| Fermentation | process that results in the partial degradation of glucose without the use of oxygen (O2) |
| cellular respiration | complete breakdown of glucose |
| In aerobic respiration, _ is used as a reactant | O2 |
| In anaerobic respiration, _ are used in place of _ | other substances; O2 |
| The three stages of aerobic respiration | glycolysis pyruvate oxidation and the citric acid cycle oxidative phosphorylation |
| Oxidative phosphorylation | electron transport and chemiosmosis |
| Glycolysis | the breaking down of sugar into pyruvate molecules |
| Pyruvate molecules may enter the | citric acid cycle |
| Two common types of fermentation | alcohol fermentation lactic acid fermentation |
| Fermentation, anaerobic respiration, and aerobic respiration all use | glycolysis to break down glucose |
| catabolic pathways | pathways that release stored energy by breaking down complex molecules |
| most efficient catabolic pathway | aerobic respiration |
| Catabolism is linked to work by | ATP |
| oxidation | loss of electrons from one substance |
| reduction | addition of electrons to another substance |
| transfer of one or more electrons from one reactant to another | redox reactions (oxidation-reduction reactions) |
| the electron donor, is called the | reducing agent |
| the electron acceptor is the | oxidizing agent |
| some redox reactions change the degree of electron sharing through | covalent bonds |