Draw the mechanism for the complete oxidation of a C-7 saturated fatty acid. Indicate the yield of ATP equivalents assuming there are 8 c-subunits in the ATP synthase, and NADPH = NADH.
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- Draw the mechanism for the complete oxidation of a C-7 saturated fatty acid. Indicate the yield of ATP equivalents assuming there are 8 c-subunits in the ATP synthase, and NADPH = NADH.
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- Using the ActiveModel for enoyl-CoA dehydratase, give an example of a case in which conserved residues in slightly different positions can change the catalytic rate of reaction.Based on your knowledge of the structure of NAD+ and an assumption that coenzyme dissociation is the rate limiting step of the alcohol dehydrogenase mechanism, hypothesize why a N249W mutation at the coenzyme binding site would increase the rate of catalysis.Show the first cycle of beta-oxidation of stearic acid. How many ATPs will be generated from the complete oxidation of this fatty acid?
- How many total moles of ATP are created in a cell with an ATP synthase with 8 c subunits for every 28 moles of glucose that is completely oxidized in glycolysis and the Krebs cycle? Assume that NADH is transported by the malate aspartate shuttle.The transformation of glucose to lactate in myocytes releases only about 7% of the free energy released when glucose is completely oxidized to CO2 and H2O. Does this mean that anaerobic glycolysis in muscle is a wasteful use of glucose? Explain.Write a balanced chemical equation for the pentose phosphate pathway in the first two modes depicted as shown, where (a) ribose-5-phosphate synthesis is maximized and (b) NADPH production is maximized, by conversion of the sugar phosphate products to glucose-6-phosphate for repeated operations of the pathway.
- Considering the complete oxidation of an 18-C fatty acid. Give the answer for the following question.a. How many rounds of beta-oxidation is needed?b. How many NADH molecules are produced in beta-oxidation only?c. How many FADH2 molecules are produced in beta-oxidation only?d. How many Acetyl Co-A are produced?Consider a 24:1 △cis-9 fatty acid in the mitochondrion. For each fatty acid given, determine the following. Gross ATP from b-oxidation cycles Gross ATP from acetyl CoA produced Gross ATP from conversion of propionyl CoA (if applicable) Total number of ATP deducted Total net ATPWrite a balanced equation for HMP Pathway where by Fructose 6 phosphate and glyceroldehyde 3 phosphate generated by each passage through HMP is catabolized by glycolysis and TCA cycle to NADH and CO2.
- Suppose a patient has correctly diagnosed GALT (galactose-1-phosphate uridylyltransferase) deficiency. Would this patient have lower steady state levels of NADPH in the presence of normal steady state glucose levels? Why is NADPH an important byproduct of the pentose phosphate pathway anyways?Consider fatty acids from the hydrolysis of the given TAG in a liver cell where amino acid and nucleotide biosynthesis is very active For each fatty acid given, determine the following. Gross ATP from b-oxidation cycles Gross ATP from acetyl CoA produced Gross ATP from conversion of propionyl CoA (if applicable) Total number of ATP deducted Total net ATPThe malate–aspartate shuttle yields about2.5 moles of ATP for each mole of cytosolic NADH. Why doesnature use the glycerol–phosphate shuttle, which yields only about1.5 moles of ATP?