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Unformatted text preview: Jjs402a Chapter 9- During Cellular resp. glucose is oxidized to CO2 and O2 is Reduced to H2O o This causes electrons to lose potential energy o Electrons passed first to NAD+ converting it to NADH- Glycolysis and the citric acid cycle supply electrons via NADH and FADH2 to the electron transport chain o Oxidative phosphorylation- reactions powered by redox reactions in the etc- Glycolysis oxidizes glucose (6C) to pyruvate (3C) o Consists of two phases: energy investment and energy payoff Investment loses 2 ATP Payoff Gains 4 for net gain of 2 ATP- Citric Acid Cycle o Upon entering the mitochondria, pyruvate is immediately converted to acetyl CoA o Produces two ATP by substrate level phosphorylation (removing a P from a substrate molecule rather than from an inorganic source)- ETC o Cytochromes- proteins that carry electrons between ubiquinone and oxygen o ATP synthase- enzyme that actually makes ATP using the existing hydrogen ion gradient (process of chemiosmosis)- Alcohol fermentation o Pyruvate is converted to ethanol after a CO2 breaks off making...
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