Lecture_5_Cellular_resp_part2

Lecture_5_Cellular_resp_part2 - Biology 230 Jennifer...

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Unformatted text preview: Biology 230 Jennifer Breckler Cellular respiration, part 2 Chapter 9, Campbell 8e Reviewing the main concepts of cellular respiration: Animals and other eukaryotes use cellular respiration which uses fuel (i.e. organic molecules such as sugar) to obtain the chemical energy needed for work. Cellular respiration consists of 3 main processes: glycolysis, citric acid cycle and oxidative phosphorylation (which consists of electron transport & chemiosmosis). Cellular respiration includes a series of energy transfers of electrons known as redox reactions Cellular respiration produces chemical energy mainly in the form of ATP molecules by either substrate-level phosphorylation or oxidative phosphorylation. Most ATP is produced during oxidative phosphorylation, which takes place in the mitochondrion. NADH is the intermediate electron acceptor molecule that transfers electrons to oxidative phosphorylation. Fig. 9-17 Maximum per glucose: About 36 or 38 ATP + 2 ATP + 2 ATP + about 32 or 34 ATP Oxidative phosphorylation: electron transport and chemiosmosis Citric acid cycle 2 Acetyl CoA Glycolysis Glucose 2 Pyruvate 2 NADH 2 NADH 6 NADH 2 FADH 2 2 FADH 2 2 NADH CYTOSOL Electron shuttles span membrane or MITOCHONDRION 3) Oxidative phosphorylationthe final stage of cellular respiration Fig. 9-UN6 Fig....
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This note was uploaded on 11/28/2011 for the course BIOL 230 taught by Professor J.breckler during the Spring '11 term at S.F. State.

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Lecture_5_Cellular_resp_part2 - Biology 230 Jennifer...

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