Draw the complete electron pushing mechanism for the reaction.
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Draw the complete electron pushing mechanism for the reaction.
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- Complete oxidation of a 16-carbon fatty acid can yield 129 molecules of ATP Study Figure 19.2 and determine how many ATP molecules would be generated if a 16-carbon fatly acid were metabolized solely by the TCA cycle, in the form of S acetyl-CoA molecules.Discuss the metabolic control for HMG CoA reductase synthesis and activityWhich of the following is most helpful in ensuring that wasteful (unproductive) hydrolysis of acetyl CoA does not occur in the reaction catalyzed by citrate synthase? Group of answer choices Citrate synthase is a tetramer Induced fit ensures oxaloacetate binds before acetyl CoA 3 molecules of oxaloacetate bind for every 1 molecule of acetyl CoA Citrate inhibits the reaction Which of the following catalyzes a step that does NOT produce CO2? Group of answer choices alpha-ketoglutarate dehydrogenase complex malate dehydrogenase pyruvate dehydrogenase complex isocitrate dehydrogenase Citrate synthase is regulated by... Group of answer choices Concentrations of substrate and products Fructose-2,6-Bisphosphate Covalent modification Allosteric regulation by the levels of NADDH
- Complete the balanced equation for the synthesis of the fatty acid. x Acetyl-CoA + y ATP + z NADPH + z H+ CH3(CH2)20COOH + x CoA+ y ADP + y Pi + v H₂O + Z NADP+ x=12 y=11 z=22 v=10 x=5 y=4 Z=8 v=3 x=7 y=6 Z=12 v=5 x=11 y=10 z=20 v=94. Identify: for nos. 1-5: Name of the missing metabolite in the pathway 6-10: Enzyme that catalyzed the reaction 11-15: Reaction involved 5 FAD 10 -FADH₂ trans-2-En oyl-CoA 15 H₂O 3-Hyroxya cyl-CoA NAD+ NADH+H+ beta-Ketoacyl-CoA COASH Acetyl-CoA Acyl-CoA (2 C Atoms Shorter) Malate Fumarate Glucose 6 Glucose-6-phosphate 11 Fructose-6-phosphate Phoshphoenolpyruvate Succinate 12 Acetyl ČOA 13 7 Citrate 3 Lactate 14 Isocitrate 8 a-ketoglutarateWhat is the rate-limiting step in the synthesis of acetyl CoA? oxidation regeneration of lipoamide decarboxylation transfer to lipoamide transfer to CoA
- 25. The AG" values for the two reactions are given. 1. 2. oxaloacetate + acetyl-CoA + H₂O → citrate + COASH oxaloacetate + acetate → citrate Enzymes for reactions 1 and 2 are citrate synthase and citrate lyase, respectively. Determine the AG" for the hydrolysis of acetyl-CoA acetyl-CoA + H₂O acetate + COASH + H+ plane een isoimorfbold bns (94) opg Vp1903 9911 AG¹⁰ ? AGO = -32.2 kJ/mol AG"=-1.9 kJ/molFatty acids are activated for breakdown through the action of acyl-CoA synthestase. Which of the following statements regarding acyl-CoA synthetase is not true? ● It catalyzes the addition of CoA to the fatty acid One of the products of the reaction is ADP. O The free energy change for the reaction catalyzed by this reaction is close to 0 kJ/mol, but the subsequent hydrolysis of pyrophosphate drives the reaction forward. O The reaction results in the formation of a thioester bond.Arrange the steps of breakdown of oleic acid (pictured below) in the correct order. 1 2 3 4 5 activation by acyl-CoAsynthe ✓ [Choose ] one cycle ofß-oxidationbeginning at the enoyl-CoAhydratasestep three cycles ofẞ-oxidation five cycles ofß-oxidation activation by acyl-CoAsynthetase enoyl-CoAisomeraseactivity enoyl-CoAisomeraseactivity V one cycle ofß-oxidationbegini V five cycles ofß-oxidation OH
- Yeasts and plants can use acetyl-CoA as a carbon source by omitting which two steps in the TCA cycle? O Citrate isocitrate; isocitrate → a-ketoglutarate O Isocitrate → a-ketoglutarate; a -ketoglutarate → succinyl-CoA - O Oxaloacetate citrate; malate → oxaloacetate O Succinyl-CoA succinate; succinate → fumarateint IMLeagues | Provi... Time Remaining: 00:18:21 A Hide Time Remaining A Arsenic is a water soluble element that is a poison because it functions as an allosteric inhibitor of the citric acid cycle enzymes pyruvate dehydrogenase and succinate dehydrogenase. One of the consequences of arsenic poisoning is lactic acidosis from the buildup of lactate in the body. Why does arsenic treatment result in a buildup of lactate? Legend Pyruvate Acetyl Hydrogen COA SH + NAD+ Pyruvate dehydrogenase Co,+NADH, H* Adenosine Carbon ATR triphosphate CoA Охygen Guanosine CGTP triphosphate Sulfur Acetyl-CoA COA SH Q Coenzyme Q CoA Coenzyme A HCO3 +CATP Water NADH Nicotinamide adenine dinucleotide Citrate Pyruvate carboxylase Pyruvate dehydrogenase Enzyme ADP+Pi Citrate synthase Aconitase Oxaloacetate Water cis-Aconitate Water NADH, H* Aconitase Malate dehydrogenase NAD. D-Isocitrate NAD* Malate NADH, H* Isocitrate dehydrogenase CO2 Citric acid cycle Fumarase MacBook PrIn relation to cholesterol metabolism answer the following: A- Explain how cholesterol synthesis depends on the activity of “ATP-citrate lyase” enzyme? B- “3-Hydroxy-3-methylglutaryl CoA” is a common metabolite in two pathways, mention the names of these two pathways? What determine which pathway this metabolite follows? C- The combination of cholestyramine and an HMG CoA reductase inhibitor is very effective in reducing serum cholesterol for most patients with high cholesterol. Why is this treatment much less effective for patients with Familial hypercholesterolemia?