L Mitochondrion - Mitochondrion and Electron Transport...

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itochondrion and Electron Transport Mitochondrion and Electron Transport earning Objectives • Structure of the mitochondrion Learning Objectives • Transport systems of the mitochondrion he electron transport chain The electron transport chain • Coenzymes of the electron transport chain ytochromes • Cytochromes
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ADH and FADH NADH and FADH 2 Fig. 18-1 The sites of electron transfer that form NADH and FADH 2 in glycolysis and citric acid cycle
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Two Half-Reactions of Complete xidation of Glucose Oxidation of Glucose verall Reaction: C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O Overall Reaction: Two half-reactions: C 6 H 12 O 6 + 6 H 2 O 6 CO 2 + 24 H + + 24 e - Glycolysis and citric acid cycle 6 O 2 + 24 H + + 24 e - 12 H 2 O lectron Transport Chain Electron Transport Chain
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The Fate of Electrons Released upon l O id ti Glucose Oxidation The “elementary” steps of the first half-reaction take place in the cytosol (glycolysis) and in the mitochondrion (the citric acid cycle). The released 12 electron pairs reduce 10 NAD + and 2 FAD ielding 10 NADH and 2 FADH yielding 10 NADH and 2 FADH 2 . “Elementary” steps of the second half-reaction take place in the itochondrion The 12 electron pairs move from NADH and mitochondrion. The 12 electron pairs move from NADH and FADH 2 to the electron transport chain that includes more than 10 redox centers in four enzyme complexes .
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This note was uploaded on 04/10/2011 for the course SCIENCE 2EE3 taught by Professor Zhorov during the Spring '11 term at McMaster University.

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L Mitochondrion - Mitochondrion and Electron Transport...

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