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Unformatted text preview: B. 2 molecules of ATP and 2 NADH produced. C. 2 molecules of pyruvate are synthesized. D. A and B. E. B and C. 5. In gluconeogenesis: A. New molecules of glucose are synthesized B. Excess glucose can be stored in the liver in the from of glycogen. C. Many enzymes involved are the same as in glycolysis. D. All of the above. E. None of the above. Correct answers: 1. D. (p.75) 2. E. Oxidative phosphorylation and the Krebs cycle occur in the mitochondria, and glycolysis in the cytosol. 3. D. Rate-limiting reaction is the slowest reaction in a chain of reactions. Which reaction in a chain is the rate limiting one may change as more substrate or activated enzyme become available. Also changes in cellular pH might slow a reaction down and speed up another. Rate-limiting enzymes are often the sites of allosteric and covalent regulation. (p.75) 4. E. (p.78 and p. 80.) 5. D. (p. 86)...
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This note was uploaded on 07/01/2008 for the course INTEGRATIV 130 taught by Professor Kregel during the Spring '08 term at University of Iowa.
- Spring '08