Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 9.8CC
Why are the key regulatory enzymes in glycolysis and gluconeogenesis unique to each pathway? Why is there reciprocal regulation of these enzymes?
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Chapter 9 Solutions
Becker's World of the Cell (9th Edition)
Ch. 9 - How are catabolic and anabolic pathways similar?...Ch. 9 - Prob. 9.2CCCh. 9 - Why do oxidation and reduction reactions always...Ch. 9 - How can glucose be oxidized in the absence of...Ch. 9 - In the absence of oxygen, why is it necessary to...Ch. 9 - Prob. 9.6CCCh. 9 - Prob. 1QCh. 9 - Why dont glycolysis (glucose to pyruvate) and...Ch. 9 - Why are the key regulatory enzymes in glycolysis...Ch. 9 - Why do cancer cells carry out high rates of...
Ch. 9 - High-Energy Bonds. When first introduced by Fritz...Ch. 9 - The History of Glycolysis. Following are several...Ch. 9 - Glycolysis in 25 Words or Fewer. Complete each of...Ch. 9 - Energetics of Carbohydrate Utilization. The...Ch. 9 - QUANTITATIVE Glucose Phosphorylation. The direct...Ch. 9 - Ethanol Intoxication and Methanol Toxicity. The...Ch. 9 - Propionate Fermentation. Although lactate and...Ch. 9 - QUANTITATIVE Glycolysis and Gluconeogenesis. As...Ch. 9 - Prob. 9.9PSCh. 9 - Youve Got Some Explaining to Do. Explain each of...Ch. 9 - Arsenate Poisoning. Arsenate (HAsO42) is a potent...Ch. 9 - Life Without Phosphofructokinase. Many bacteria do...Ch. 9 - Prob. 9.13PS
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- Both prokaryotic and eukaryotic organisms carry out some form of glycolysis. How does ha fact support or not support the assertion that glycolysis is one of the oldest metabolic pathways?arrow_forwardWhy are some enzymes needed only in the gluconeogenesis pathway and not in the glycolysis pathway?arrow_forwardWhy is reciprocal regulation a key feature of glucose metabolism?arrow_forward
- What is the cost (in ATP equivalents) of transforming glucose to pyruvate via glycolysis and back again to glucose via gluconeogenesis?arrow_forwardIf glucose is such a readily available fuel, why is gluconeogenesis necessary?arrow_forwardWhy is it important that gluconeogenesis is not the exactreverse of glycolysis?arrow_forward
- Which amino acids can be converted to pyruvate by a single enzyme-catalyzed reaction?arrow_forwardWhen 13C-labeled CO2 is used in the gluconeogenesis pathway, does the resulting glucose contain 13C? If so, which carbon of glucose is 13Carrow_forwardWhat is the key enzyme of glycolysis which catalyzes the production of fructose-1,6-bisphosphate?arrow_forward
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