Identify the label in the correct position in the following: C-1 of acetyl CoA to malate (one cycle) 3-14C OAA + unlabeled acetyl-CoA to succinate.
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Identify the label in the correct position in the following: C-1 of acetyl CoA to malate (one cycle) 3-14C OAA + unlabeled acetyl-CoA to succinate.
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- Study Figure 19.18 and decide which of the following statements is false. Pyruvate dehydrogenase is inhibited by· NIADH. Pyruvate dehydrogenase is inhibited by AΤΡ. Citrate synthase is inhibited by NADH. Succinyl-CoA activates citrate synthase. Acetyl-CoA activates pyruvate carboxylase.What enzyme is inhibited by Acetyl-CoA carboxylase? a)Acetyl-CoA carboxylase b)Citrate lyase c)E3 ubiquitin ligase d)Carnitine acyltransferase IIf the w-carbon atom of a fatty acyl CoA molecule with a C18 chain is labeled with C14, how many rounds of β-oxidation are required to produce a radioactively labeled acetyl CoA? a. four b. five c. six d. seven e. eight f. nine
- Name the following enzymes:a. enzyme responsible for the cutting of the sugar on the nonreducing ends of glycogen branches b. enzyme that is only present in the liver and kidney during glycogen utilization c. enzyme that catalyzes the transfer of a two-carbon fragment from a ketose donor to an aldose acceptor in PPPAcetly CoA can quickly enter the citric acid cyle by joining with a C4 compound and forming citrate. Meanwhile, GTP (or ATP) is generated using inorganic phosphate while succinyl CoA is converted to succinate. What is the main reason both acetly CoA and succinyl CoA can perform such work? a. Acetyl CoA and succinyl CoA both contain coenzyme A, which is a high-energy compound. b. Acetyl CoA and succinyl CoA both form an unstable thioester bond with coenzyme A. c. Acetyl CoA and succinyl CoA both bind with inorganic phosphate which is used to generate ATP (or GTP). d. Acetyl CoA and succinyl CoA both transiently form a covalent bond with the enzymes that catalyze the next reaction, pyruvate dehydrogenase and succinyl-CoA synthetase, respectively. e. Acetyl CoA and succinyl CoA use the energy collected from the electron transport chain.Which one of the following will function to inhibit CPT1? A.palmitoyl-CoA B.citrate C propionyl-CoA D.acetyl-CoA E malonyl-CoA
- Which of the following reactions correspond to the decarboxylation step during ketone body formation? A. 2 acetyl-CoA → acetoacetyl-CoA B. ß-hydroxybutarate → acetoacetate C. Acetoacetate → acetone D. HMG-CoA → mevalonateThe reaction of acetyl-CoA and oxaloacetate in the TCA cycle forms a. 5-carbon α-ketoglutarate b. 4-carbon Succinyl-CoA c. 6-carbon citrate d. 6-carbon α-ketoglutarate e. 4-carbon citrateWhich of the following condenses with oxaloacetate to form citrate? A) carboxybiotin B) cis-aconitate C) acetyl-CoA D) oxalosuccinate E) succinyl-phosphate
- [Alphabetical order] Name all of 7 ketogenic acids that convert to acetyl CoA and acetoacetyl CoA.Complete the following paragraph describing the fate of the second 14CO-acetyl-CoA molecule incorporated into the glyoxylate cycle. The glyoxylate produced in the isocitrate reaction combines with a (A.) 2nd molecule of oxoaloacetate, B.) 2nd molecule of succinate, C.)2nd molecule of acetyl coa) in the malate synthase reaction. Malate is (A.Chiral, B.diasteromeoic C.)Achiral) ; therefore, the oxaloacetate produced from glyoxylate will be labeled at (A.Either of carboxylate carbon B. specifically at methylene carbon C. Specifically at carbonyl carbon D. Specifically at carboxylate carbon bonded to methylene).On these following choices, Malonyl CoA synthase, Malonyl CoA synthetase, Acetyl CoA carboxylase and Acetyl CoA decarboxylase, what is the correct answer in fatty acid synthesis?
