A series of chemical reactions convert a polypeptide into 13 acetyl CoAs. This acetyl COA goes into the citric acid cycle and then all of the NADH and FADH2 produced are covnerted to ATP by oxidative phosphorylation. How many total ATP is produced from this acetyl CoA including the citric acid cycle and oxidative phosphorylation?
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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.The citric acid cycle consumes oxygen Group of answer choices True False Oxidative phosphorylation converts the phosphoryl-transfer potential of ATP into the electron transfer potential of NADH and FADH2 Group of answer choices True False Carbohydrate metabolism is the source of all acetyl CoA that enters the citric acid cycle Group of answer choices True FalseIf TWO acetyl CoA enter the citric acid cycle, for each glucose we started with, then how many of each product listed below do we get. _____ ATP _____ NADH _____FADH2 _____ CO2
- ___ molecules of ATP are ultimately formed per every acetyl-CoA that enters the citric acid cycle and the remaining ATP molecules are generated via the ___ of NADH and FADH2. A) Nine; oxidation B) Ten; reduction C) Ten; oxidation D)Nine; reductionBefore pyruvate enters the citric acid cycle, it is decarboxylated, oxidized, and combined with coenzyme A, forming acetyl CoA, carbon dioxide, and one molecule of (a) NADH (b) FADH2 (c) ATP (d) ADP (e) C6H12O6Taking into consideration glycolysis, the pyruvate dehydrogenase complex and the citric acid cycle, how many NAD+ molecules are reduced from a single molecule of dihydroxyacetone phosphate? 4 NAD+ are reduced 5 NAD+ are reduced 8 NAD+ are reduced 10 NAD+ are reduced None of the above answers are correct
- Which of the following pair of substances are products of the citric acid cycle? a) Acetyl CoA and NADH b) Acetyl CoA and CO2 c) CoA-SH and FADH2 d) Citrate and CO2Each cycle of beta (β)-oxidation produces a. 1 FADH2, 1 NADH, and 2 CO2 molecules b. 1 FADH2, 1 NAD+, and 1 acetyl-CoA. c. 1 FADH2, 1 NADH, and 1 acetyl-CoA d. 1 FAD, 1 NADH, and 1 acetyl-CoA.Which of the following is the third step of Citric Acid Cycle? Select one: a. Succinyl-CoA becomes Succinate and forms one ATP molecule and Coenzyme A-SH b. Pyruvate is decarboxylated to become acetyl-CoA producing NADH and Carbon dioxide c. Isocitrate and then decarboxylated and oxidized to produce alpha-ketoglutarate, Carbon dioxide and NADH d. alpha-ketoglutarate is oxidized and decarboxylated to produce Succinyl-CoA, Carbon dioxide and NADH e. Succinate is oxidized to become fumarate forming FADH2 f. Oxaloacetate combines with the acetyl from acetyl-CoA to produce Citric acid(citrate) g. Citrate is rearranged to become Isocitrate h. Malate is oxidized to become oxaloacetate forming NADH i. Fumarate is combined with water to become Malate
- Which of the following reactions/ pathways does NOT produce NADH? Payoff phase of glycolysis Oxidative deamination of glutamine β-oxidation of fatty acid Conversion of pyruvate to lactate Conversion of pyruvate to acetyl CoAWhich of the following statements are TRUE? Multiple answers:Multiple answers are accepted for this question Select one or more answers and submit. For keyboard navigation...SHOW MORE a. Two molecules of CO2 are produced each time a molecule of Acetyl-CoA is oxidized. b. During the first turn of the TCA Cycle the carbon atoms of Acetyl-CoA become CO2. c. The number of molecules of ATP that can be produced in the Citric Acid Cycle by substrate level phosphorylation of ADP from two molecules of Acetyl-CoA is 30. d. Fumarate contains a trans double bond. The cis isomer of Fumarate is Maleate which cannot serve as carbon source for a cell. e. Lack of O2 would decrease the rate of the Citric Acid Cycle in red blood cells. f. If a potent inhibitor of Succinyl-CoA Synthetaseis is applied to liver cells both energy production and synthesis of carbohydrate would be affected. g. The overall chemical changes that occur during one complete turn of the Citric Acid…When pyruvate diffuses intothe mitochondria, what chemical product does it get converted to? ATP pyruvic acid acetyl CoA NADH
