Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Question
Chapter 24, Problem 21P
Interpretation Introduction
Interpretation:
A series of three consecutive reactions in the synthesis of linoleic acid from palmitic acid that embody chemistry like three reactions in the tricarboxylic acid cycle needs to be identified.
Concept Introduction:
Palmitic acid has 16 carbon and linoleic acid is a 18 carbon fatty acid and linoleic contains two C=C double bonds. One cycle of fatty acid synthesis is required to undergo to convert palmitic acid to linoleic acid.
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Considering the fatty acids:
(a) Arachidic acid (C20H40O2); molar mass = 312.5 g/mol)
(b) Palmitoleic acid (C16H30O2); molar mass = 256.4 g/mol).
How many cycles of β -oxidation are needed for complete oxidation?
How many molecules of acetyl CoA are formed from its complete catabolism?
How can you calculate the number of molecules (moles) of ATP formed (net) by the complete catabolism of each fatty acid? and the number of moles of ATP formed per gram of each fatty acid metabolized??
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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- Understanding the Stoichiometry of Cholesterol Synthesis Write a Balanced, stoichiometric reaction for the synthesis of cholesterol from acetyl-CoA.arrow_forwardExplaining 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 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_forward
- Understanding 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_forwardModeling the Regulation of AcetyI-CoA Carboxylase Based on the information presented in the text and in Figures 24.4 and 24.5, suggest a model for the regulation of acetyl-CoA carboxylase. Consider the possible roles of subunit interactions, phosphorylation, and conformation changes in your model.arrow_forward
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