Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Textbook Question
Chapter 24, Problem 7P
Understanding the Stoichiometry of Cholesterol Synthesis Write a Balanced, stoichiometric reaction for the synthesis of cholesterol from acetyl-CoA.
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Before β-oxidation, fatty acids must be converted to their CoASH derivatives. Explain why this reaction is necessary.
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Chapter 24 Solutions
Biochemistry
Ch. 24 - Explaining the Stoichiometry of Fatty Acid...Ch. 24 - Tracing Carbon Atom Incorporation in Fatty Acids...Ch. 24 - Modeling the Regulation of AcetyI-CoA Carboxylase...Ch. 24 - Prob. 4PCh. 24 - Prob. 5PCh. 24 - Prob. 6PCh. 24 - Understanding the Stoichiometry of Cholesterol...Ch. 24 - Prob. 8PCh. 24 - Prob. 9PCh. 24 - Prob. 10P
Ch. 24 - Prob. 11PCh. 24 - Understanding the Mechanism of the...Ch. 24 - Prob. 13PCh. 24 - Understanding the Mechanism of the HMC-CoA...Ch. 24 - Prob. 15PCh. 24 - Prob. 16PCh. 24 - Prob. 17PCh. 24 - Prob. 18PCh. 24 - Prob. 19PCh. 24 - Prob. 20PCh. 24 - Prob. 21PCh. 24 - Prob. 22PCh. 24 - Prob. 23PCh. 24 - Prob. 24PCh. 24 - Prob. 25P
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- Explaining the Stoichiometry of Fatty Acid Synthesis Carefully count and account for each of the atoms and charges in the equations for the synthesis of palmitoyl-CoA, the synthesis of malonyl-CoA, and the overall reaction for the synthesis of palmitoyl-CoA from acetyl-CoA.arrow_forwardUnderstanding Enzyme Mechanisms Related to Pyruvate Carboxylase Based on the mechanism for pyruvate carboxylase (Figure 22.3), write reasonable mechanisms for the reactions that follow:arrow_forwardEffects of Changing Metabolite Concentrations on Glycolysis In an erythrocyte undergoing glycolysis what would be the effect of a sudden increase in the concentration of a. AΤP? b. AMP? c. fructose-1.6-bisphosphate? d. fructose-2, 6-bisphosphate? e. citrate? f. glucose-6-phospthate?arrow_forward
- Tracing Carbon Atom Incorporation in Fatty Acids (Integrates with Chapters 18 and 19.) Use the relationships shown in Figure 24.1 to determine which carbons of glucose will be incorporated into palmitic acid. Consider the cases of both citrate that is immediately exported to the cytosol following its synthesis and citrate that enters the TCA cycle.arrow_forwardUnderstanding the Oxidation of Glucose and Its Products in the TCA Cycle Glycolysis, the pyruvate dehydrogenase reaction, and the TCA cycle result in complete oxidation of a molecule of glucose to CO2. Review the calculation of oxidation numbers for individual atoms in any molecule, and then calculate the oxidation numbers of the carbons of glucose, pyruvate, the acetyl carbons of acetyl-CoA. and the metabolites of the TCA cycle to convince yourself that complete oxidation of glucose involves removal of 24 electrons and that each acetyl-CoA through the TCA cycle gives up 8 electrons.arrow_forwardThe Reactions and Meehanisms of the Leloir Pathway Write the reactions that permit galactose to be utilized in glycolysis. Write a suitable mechanism, tor one of these reactions.arrow_forward
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