Concept29 - Concept 9.4 During oxidative phosphorylation,...

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Concept 9.4 During oxidative phosphorylation, chemiosmosis couples electron transport to ATP synthesis The inner mitochondrial membrane couples electron transport to ATP synthesis. Only 4 of 38 ATP ultimately produced by respiration of glucose are produced by substrate- level phosphorylation. Two are produced during glycolysis, and 2 are produced during the citric acid cycle. NADH and FADH 2  account for the vast majority of the energy extracted from the food. These reduced coenzymes link glycolysis and the citric acid cycle to oxidative  phosphorylation, which uses energy released by the electron transport chain to power  ATP synthesis. The electron transport chain is a collection of molecules embedded in the cristae, the folded  inner membrane of the mitochondrion. The folding of the cristae increases its surface area, providing space for thousands of copies  of the chain in each mitochondrion. Most components of the chain are proteins bound to prosthetic groups, nonprotein 
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This note was uploaded on 01/04/2012 for the course BSC BSC1005 taught by Professor Orlando,rebecca during the Fall '10 term at Broward College.

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Concept29 - Concept 9.4 During oxidative phosphorylation,...

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