Biol 112 Nov. 14 (C) - 14/11/2011 Oxidation of glucose how...

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14/11/2011 1 Energy transformations Respiration and fermentation: Step wise oxidation of glucose and release of small energy packets in cells cells. Energy packets = ATP and reduced NAD + (NADH) Glucose 6 O 2 (oxygen Potential energy decreases 6 CO 2 (carbon dioxide 6 H 2 O (water Oxidation of glucose – how not to get burned (oxygen) (carbon dioxide) (water) Energy: oxidizing organic molecules chemoheterotrophs C from organic C Glucose 6 O 2 (oxygen Potential energy decreases 6 CO 2 (carbon dioxide 6 H 2 O (water Oxidation of glucose – how not to get burned (oxygen) (carbon dioxide) (water) Glucose oxidation is a redox reaction. Electron donor is Electron acceptor is Glucose O 2 Why is oxygen such a good electron acceptor? Figure 28-5 Glucose Glucose Glucose Fumarate e Electron donor in cellular respiration When oxygen is used as the Nitrate Oxygen e e final electron acceptor, the change in free energy is equal to about 237 kJ/mol Aerobic organisms use oxygen as a final electron acceptor.
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This note was uploaded on 01/15/2012 for the course BIOL 112 taught by Professor Benbasat during the Winter '04 term at The University of British Columbia.

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Biol 112 Nov. 14 (C) - 14/11/2011 Oxidation of glucose how...

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