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Choose all of the true statements about the Citric Acid Cycle A) two molecules of coenzyme A are produced per turn of the citric acid cycle B) the citric acid cylce is aerobic process C) the citric acid cycle occurs in the cytoplasm of the cell D) the major reactants in the citric acid cycle are acetyl-CoA, NAD+, GDP, and FAD E) In the citric acid cycle, acetyl-CoA is degraded to produce NADH and FADH2
Choose all of the true statements about the Citric Acid Cycle
A) two molecules of coenzyme A are produced per turn of the citric acid cycle
B) the citric acid cylce is aerobic process
C) the citric acid cycle occurs in the cytoplasm of the cell
D) the major reactants in the citric acid cycle are acetyl-CoA, NAD+, GDP, and FAD
E) In the citric acid cycle, acetyl-CoA is degraded to produce NADH and FADH2
Expert Solution
Glycolysis is the universal pathway that results in production of 2 net ATP. In aerobic respiration, the pyruvate is converted to acetyl Co.A that enters the citric acid cycle. The citric acid cycle is also called tricarboxylic acid cycle or Krebs cycle.
The citric acid cycle is a pathway that continues the breakdown of glucose and produces 2 molecules of adenosine triphosphate (ATP). This process occurs only in the presence of oxygen but is not involved in recycling of nicotinamide adenine dinucleotide (NAD+).
In Krebs cycle, the citrate is oxidized through several intermediate molecules. The Krebs cycle occurs in mitochondrial matrix. The citric acid cycle is followed by oxidative phosphorylation and ETC, which is the final electron acceptor and results in formation of a total of 38 ATP. Thus, oxidation of glucose molecule starts in Krebs cycle and ends in electron transport chain. In contrast, in anaerobic respiration the pyruvate is converted to form lactate. Thus, the net ATP in anaerobic respiration is 2 ATP.
Thus, the correct options among the following are B, D, and E.
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