311C F09 Worksheet_9+A - NAME _KEY_ Discussion Worksheet #9...

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NAME _______ KEY _________________ Bio 311C F09 Discussion Worksheet #9 Cellular Respiration 1. What is oxidation? Reduction? Oxidation: loss of electrons (OIL) Reduction: gain of electrons (RIG) 2. What is a reducing agent? An oxidizing agent? Reducing agent: electron donor (reduces another substance) Oxidizing agent: electron acceptor (oxidizes another substance) 3. What is substrate-level phosphorylation? During which phases of cellular respiration does substrate-level phosphorylation occur? Mode of ATP synthesis where an enzyme transfers a phosphate group from a substrate molecule (organic molecule) to ADP. Occurs in glycolysis and the citric acid cycle. 4. 4 molecules of ATP are made during glycolysis. Why is the net yield for glycolysis only 2 molecules of ATP? 2 molecules of ATP are used during the ‘energy-investment’ phase of glycolysis. 5. Glycolysis occurs in the cytosol while the final three stages of cellular respiration occur in the mitochondrion. Where in the mitochondrion do the final three stages occur? How do the products of glycolysis get into the mitochondrion? Pyruvate oxidation and citric acid cycle occur in the mitochondrial matrix; oxidative phosphorylation takes place in the inner
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This note was uploaded on 12/11/2009 for the course BIO 311 C taught by Professor Mcclelland during the Fall '09 term at University of Texas at Austin.

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311C F09 Worksheet_9+A - NAME _KEY_ Discussion Worksheet #9...

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