In mammals which intermediate of carbohydrate metabolism cannot relieve ketosis is Acetyl - CoA
13. In mammals, which intermediate of carbohydrate metabolism CANNOT relieve ketosis? A) lactate B) acetyl-CoA C)...
6. In mammals, which of the following does not occur during the citric acid cycle? A) formation of a-ketoglutarate. D) metabolism of acetate to carbon dioxide and water. B) net synthesis of oxaloacetate from acetyl-CoA. E) oxidation of acetyl-CoA. C) generation of NADH and FADHz. 7. Which of the following reaction generates GTP(ATP) in the CAC? A) Isocitrate to a-ketoglutarate. D) Fumarate to Malate. B) Malate to Oxaloacetate. E) Succinyl-CoA to Succinate. C) a-ketoglutarate to Succinyl-CoA.
27 biochem b.3 c. 3.3 d. 10 e. cannot be determined 27. Which of the following enzymes is correctly paired with an inhibitor? a. hexokinase: ATP b. phosphofructokinase-1: AMP C. pyruvate kinase: ATP . d. phosphofructokinase-2: citrate e. glyceraldehyde-3-phosphate dehydrogenase: 1,3-bisphosphoglycerate 28. The correct sequence of steps between succinyl-CoA and ATP in mammals to "preserve the energy of the thioester bond are: A. succinyl-phosphate. B. phosphohistidine. C. GTP. D. Acetyl-CoA. 2 A, B, C b. B, C, A
Which intermediate is found at the beginning and end of the TCA cycle a. acetyl coa b. NADH c. oxaloacetate d. citrate e. none of the above
Options for each are lactate, alanine, acetaldehyde, oxaloacetate, and acetyl-CoA. Match the following showing reaction products of pyruvate: a) Decarboxylation by pyruvate decarboxylase b) Carboxylation c) Transamination d) Reduction e) Decarboxylation by pyruvate dehydrogenase
#37 a. lipase is activat and acetyl CoA c c. both lipase and acetyl CoA carboxylase are activated d. both lipase and acetyl CoA caroboxylase are inhibited ase is activated yl C 36. Which of the following lipoproteins transports cholesterol from cells back to the liver a. VLD b. IDL c. LDL Liver to other cesns HD Extra Credit: Lindlenic 37. Calculate the amount of ATP that results from the complete breakdown of the following 9, 12, 137 fatty acid:...
40.Fatty acid synthase is an enzyme in the lipid metabolism pathway, that: A. occurs in the mitochondrion in animal cells, 2 nor Section A B. utilises NADH as an electron donor C) requires NADPH as a substrate. D. requires acetic acid as a substrate. E. consists of a single multifunctional protein in plants and bacteria. 41.One round of beta oxidation produces 1 molecule of acetyl-CoA from a saturated Acyl-CoA molecule. Which reducing equivalents are made in this process in which...
I1. Mammals lack the enzyme a. Lactate dehydrogenase b. Pyruvate kinase Alcohol Dehydrogenase c. d. Pyruvate decarboxylase None of the above are correct e. 12. The first reaction of the Krebs cycle combines Oxaloacetate and Acetyl CoA to make Citrate b. a. Malate and NADH to make Citrate a-ketoglutarate and citrate to make CO2 d. c- Succinate and Citrate to make Oxaloacetate 13. The electrons held by NADH and FADH, are donated to the which complexes in the ETC respectively?...
5. In the Citric Acid Cycle, a flavin coenzyme is required for a. Condensation of acetyl-CoA and Oxaloacetate. b. Oxidation of Succinate c. Oxidation of Isocitrate. d. Oxidation of Malate. e. Hydration of Fumarate.
12) Consider the conversion of pyruvate to lactate. Which statement is TRUE? OO OH 0 + CHU - C-CH0 pyruvate CH = CH-CH0 lactate a) It is the preparatory step to the creation of acetyl CoA and the release of CO2 b) It is the isomerization that allows glycolysis to occur (→ CH.CHOH + CO2). e) It is the only way to consume electrons under anaerobic conditions. d) It is a "fermentation step which makes ethanol as an alternative fuel....
Oxaloacetic Acetyl Coa » Coa Citric acid acid NADH NAD Malic acid Isocitric acid Fumaric acid NAD CO2 NADH FADH, FAD+ Q-ketoglutaric acid Succinic acid CO2 NAD+ Succinyl-CoA NADH ADP+P; ATP Figure 9.1 2 26) Refer to Figure 9.1. If citric acid has six carbon atoms, how many carbon atoms does succinic acid have? A) 4 B) 12 C)5 D)1 E) 6 27) Refer to Figure 9.1. Starting with one acetyl CoA molecule, what is the maximum number of ATP...