BB lecture 10-29 chemiosmosis & fermentation

BB lecture 10-29 chemiosmosis & fermentation -...

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Chapter 9 (pp.170-176; Added pp.177-178 ) Chemiosmosis & oxidative phosphorylation, Learning objectives: • Describe what the electron transport “chain” consists of and its location • Explain where and how the electron transport chain creates a proton gradient • In general terms, explain how the electron transport chain is coupled to the production of ATP • Describe the role of ATP synthase • Distinguish between aerobic and anaerobic respiration, and fermentation ------------------------------------------------------------------------------------------------------- • Be able to summarize how products of protein and lipid catabolism enter the same metabolic pathway that oxidizes glucose Terms to know include: electron carrier, chemiosmosis, proton motive force, flavoprotein, ubiquinone, cytochrome c, facultative anaerobe…
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What is the electron transport chain (ETC) ? The electron transport chain is a series of proteins embedded in a membrane that undergo successive oxidation-reduction reactions. As one substance is enzymatically oxidized another becomes enzymatically reduced . This series of rx takes place in the inner membrane of the mitochondria and involves clusters of certain proteins arranged in order of progressively greater electronegativity. Some illustrations from different sources follow… Note & compare to your Fig.9.15
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Also, note the different sites for oxidation of the NADH and FADH 2 co-enzymes. mitochondrion
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This note was uploaded on 10/06/2010 for the course BIO 311C taught by Professor Satasivian during the Fall '08 term at University of Texas at Austin.

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BB lecture 10-29 chemiosmosis & fermentation -...

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