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What molecule forms when Acetyl-CoA enters the Krebs cycle?
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ATP |
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pyruvic acid |
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glucose |
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citric acid |
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isocitrate |
Step by step
Solved in 2 steps
- Glycolysis reaction produces a molecule of Acetyl CoA. True or False?Which of the following doesn’t occur in the transition reaction? Pyruvic acid is oxidized Pyruvic acid is decarboxylated Pyruvic acid is reduced Acetic acid attaches to coenzyme A to form Acetyl CoATwo carbon atoms are fed into the citric acid cycle as acetyl-CoA. In what form are two carbon atoms removed from the cycle?
- The conversion of pyruvate into acetyl CoA consists of three steps. Identify these three steps and order them from first to last. decarboxylation oxidation acetyl transfer First step Last step Answer Bank reduction condensationThe conversion of pyruvate to Acetyl-CoA involves an oxidative decarboxylation. Correct the path of the electrons through this mechanism: Pyruvate -> NAD -> lipoamide -> FAD -> TPPWhat are two important compounds that lie at crossroads of major metabolic pathways? Select both that apply. Glucose Pyruvate Glycerol 3-Phosphoglycerate Alanine Acetyl CoA
- Saturated fatty acids are degraded by the stepwise reactions of oxidation, producing acetyl-CoA. Excluding stages 2 and 3 of fatty acid oxidation, how many ATP molecules would be produced as a consequence of the removal of each Acetyl-CoA under aerobic conditions? O O three five two six fourChoose all of the molecules that are made in acetyl-CoA formation and the citric acid cycle that are important to note. NADH FADH2 CO2 ATP pyruvate glucoseIf metabolites from fats, amino acids and lactate are to be converted to glucose, which of the following is a common metabolic precursor? oxaloacetate acetyl CoA alpha-ketoglutarate pyruvate succinyl CoA
- How does oxaloacetate get to the cytoplasm (from mitochondria matrix) for gluconeogenesis? oxaloacetate is converted to malate and malate is transported to cytoplasm via transporter protein. oxaloacetate gets to cytoplasm by diffusion. oxaloacetate is converted to Acetyl-CoA and Acetyl-CoA is transported to cytoplasm via transporter protein.Which of the following is NOT produced during the reactions of acetyl-CoA formation? Acetyl CoA Electrons CO2 ATPWhich of the following events does not occur during Krebs Cycle? Citrate synthase catalyzers the transfer of an acetyl group from acetyl coenzyme A to oxaloacetate to form citrate. Isocitrate dehydrogenase converts citrate to its isomer isocitrate. A carbon dioxide is released when alpha-ketoglutarate is oxidized to succinyl coenzyme A. The energy released from the conversion of succinyl coenzyme A to succinate is used to transfer a phosphate group to ADP to form ATP. During Krebs Cycle, succinate is oxidized to fumarate which is coupled to the reduction of FAD to FADH2. During electron transport, the electrons from FADH2 are transferred to coenzyme Q. Which of the following catalyzes these reactions? NADH dehydrogenase Succinate dehydrogenase FADH2 hydrogenase NADH hydrogenase reductase