What would be the difference in ATP generated from beta oxidation of a 14C fatty acid with 1 double bond and a 16C fatty acid with two double bonds? Do not calculate atp generated from acetyl CoA
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What would be the difference in ATP generated from beta oxidation of a 14C fatty acid with 1 double bond and a 16C fatty acid with two double bonds? Do not calculate atp generated from acetyl CoA
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- Understanding the Mechanism of the HMC-CoA Synthase Reaction Write a suitable mechanism for the HMG-CoA synthase reaction. What is the chemistry that drives this condensation reaction?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.The Effect of lodoacetic Acid on the Glyceraldehyde-3-P Dehydrogenase Reaction (Integrates with Chapters 4 and 14.) How might iodoacetic acid affect the glyceraldehydes-3-phosphate dehydrogenase reaction in glycolysis? Justify your answer.
- Figure 27.3 illustrates the response of R (ATP-regenerating) and U (ATP-utilizing) enzymes to energy charge. a. Would hexokinase be an R enzyme or a U enzyme? Would glutamine: PRPP amidotransferase, the second enzyme in purine biosynthesis, be an R enzyme or a U enzyme? b. If energy charge = 0.5: Is the activity of hexokinase high or low? Is ribose-5-P pyrophosphokinase activity high or low? c. If energy charge = 0.95: Is the activity of hexokinase high or low? Is ribose-5-P pyrophosphokinase activity high or low?The 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.Extending the Mechanism of Methylmalonyl-CoA Mutase to Similar Reactions Based on the mechanism for the methylmalonyl-CoA mutase (see problem 14), write reasonable mechanisms for the following reactions shown.
- How many ATP can be produced by the complete oxidation of each propionyl-CoA product of fatty acid oxidation? Compare this to the ATP yield for each acetyl-CoA.How many ATP molecules can be generated from one mol of 14CH3-COOH? (The conversion of acetate to acetyl-CoA requires the consumption of 2 ATP.)Calculate the number of ATP formed from NADH and FADH2. The calculation should be based on the total number of protons and c-subunits of 2-Acetyl-CoA that has 15 subunits.
- How many acetyl CoA molecules are produced in one cycle of beta oxidation? How many cycles would it take to catabolize a stearic acid molecule (a fatty acid, [18:0]) into acetyl Co A units? a)How many acetyl CoA molecules would be produced? b) How many reduced nucleotides would be produced? c) If a molecule of glucose produces a net 32 ATP when completely catabolized, which do you think will produce more energy, one molecule of glucose or one molecule of stearic acid? Justify your answer.Water production from fatty acid oxidation is a survival mechanism in animals where water is scarce. Cells oxidize palmitoyl-CoA to produce water. If an animal has 5.000 kg of palmitoyl-CoA available for fatty acid oxidation, how many kilograms of water could the animal produce from that palmitoyl-CoA? The chemical formula for palmitoyl-CoA is C37H66N7O17P3S.In the beta oxidatiin pathway when the starting fatty acid contains n carbons what is the priduct of the enzyme acyl-CoA sythetase assume the starting saturated fatty acud contains n carbons and n is an even number