chapter 9

chapter 9 - Cellular Respiration Principles of Energy...

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Cellular Respiration Principles of Energy Harvest Catabolic pathway Fermentation Without oxygen Cellular respiration With oxygen More efficient C6H12O6 + 6O2 6CO@ + 6H2O + E (ATP + heat) Redox Reactions Oxidation reduction OIL RIG Oxidation is e- loss; reduction is e-gain Adding e-reduces charge Reducing agent: E- donor Oxidizing agent E- acceptor Oxygen is best redox agent to have because it is so electronegative Oxidizing agent in respiration NAD+ Electron acceptor Oxidizing agent Structure from nucleotides Removes electrons from food (series of reactions NAD+ is reduced to NADH Picks up H and electrons from food Enzyme action Dehydrogenate Move hydrogen’s from food Oxygen is the final e- acceptor Electron Transport Chains Electron carrier molecules Membrane proteins- embedded in phospholipids Prokaryotes have them in membrane Shuttles electrons that release energy used to make ATP
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This note was uploaded on 10/31/2011 for the course BIO 102 taught by Professor Robinson during the Spring '09 term at UPenn.

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chapter 9 - Cellular Respiration Principles of Energy...

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