BIO 3124 Lecture Notes - Lecture 6: Electron Transport Chain, Reduction Potential, Glycolysis
7 Dec 2016
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Need electron source for all metabolic activities generating energy. Lower (negative) redox potential more donation probability. Higher (positive) redox potential more accepting probability. Measure of the tendency of a chemical species to accept electrons o. No energy needed to get positive (top of stairs) o. A donating electrons to b produce energy. B donating electrons to a consume energy. Energy in reaction depends on distance between a and b. Difference of energy is how much energy is involved o. Same amount of energy whether it is produced or consumed. Becoming negative and consuming energy for a to reduce b o. Becoming negative and consuming energy for a to reduce b. Reaction will either cost or produce the most energy. Inorganic final electron acceptor other than o2 is used. In all 3 cases o o o o o. Top of stairs to bottom o o o.
