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chap 9 c.notes2 - Chapter 9 Cellular Respiration Harvesting...

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Concept 9.1 -- Catabolic pathways yield energy by oxidizing organic fuels. Process of electron transport chain. Analogous “downhill” route of ETC (the e- removed from glucose by NADH is pulled toward oxygen for stability ) Concept 9.2 -- Glycolysis harvests chemical energy by oxidizing glucose to pyruvate Define: Glycolysis (The splitting of glucose into pyruvate .) Define Citric Acid Cycle (completes the breakdown of glucose by oxidizing a derivative of pyruvate to carbon dioxide .) Define: Oxidative Phosphorylation (Oxidative phosphorylation accounts for almost 90% of the ATP generated by respiration.) Define: Substrate–level phosphorylation For each molecule of glucose degraded to carbon dioxide and water by respiration, the cell makes up to about 38 molecules of ATP. Glycolysis divided into two phases: Energy investment & Energy payoff. The carbon originally present in glucose is accounted for in the two molecules of pyruvate; no CO 2 is released during glycolysis.
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