Use the name of the enzyme and any coenzyme to predict the products of this reaction. OH CH₂-C-CH₂-C-SCOA H NAD B-hydroxyacyl CoA dehydrogenase
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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.Identify the Krebs cycle enzyme that consumes a 3-carbon substrate molecule, producing a 2- carbon product molecule (attached to acetyl-CoA), along with NADH, and one molecule of CO2. succinyl CoA synthetase a-ketoglutarate dehydrogenase pyruvate dehydrogenase isocitrate dehydrogenase malate dehydrogenaseThe pyruvate dehydrogenase complex catalyzes the oxidative decarboxylation of pyruvate to form acetyl‑CoA. E1E1 , E2E2 , and E3E3 are abbreviations for the enzymes of the complex. Classify the enzyme names, prosthetic groups, and reactions as E1E1 , E2E2 , or E3E3 .
- Thiolase is homologous in structure to the condensing enzyme. On the basis of this observation, propose a mechanism for the cleavage of 3-ketoacyl CoA by CoA.C-CH2 + H* CO, + CH,-C-S-COA S-COA Malonyl-CoA Acetyl-CoA Hydrolase Transferase Lyase LigaseIn the pyruvae dehydrogensae complex, acetyl-coa is released by the dihydrolipoyl transacetylase activity. What is the purpose of the following enzymatic activity.
- Glucagon secretion causes inhibition of intracellular acetyl-CoA carboxylase activity by several mechanisms. Name all you can think of.What is the common end-product of the catabolism of the branched chain amino acids that are converted to succinyl CoA? alpha-ketoglutarate glyceraldehyde phosphate oxaloacetate . propionylCoA isovalerateIdentify a pathway for utilization of the four carbons of acetoacetate in cholesterol biosynthesis. Carry your pathway as far as the rate-determining reaction in cholesterol biosynthesis. Drag the appropriate labels to their respective targets. succinyl-CoA succinate acetyl-CoA CoA-SH acetoacetyl-CoA HMG-CoA 2NADP 2NADPH+ 2H acetoacetate K UHL return to a mevalonate + CoA-SH
