How many molecules of carbon dioxide (CO2) would be produced by five turns of the citric acid cycle?

A) 12B) 2C) 60D) 5E) 10

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Answer:

The correct answer is E) 10

Explanation:

Glucose is partially oxidized during the glycolysis process into two pyruvate molecules. Then these pyruvate molecules get totally oxidized into CO2 during the citric acid cycle. This citric acid cycle occurs in the matrix of mitochondria.

During a single turn of the citric acid cycle, 2 molecules of carbon dioxide are released. Apart from two molecules of CO2, 3 molecules of NADH, 1 molecule of FADH2 and 1 molecule of ATP or GTP are also produced.

So if 2 molecules of CO2 are produced in one turn therefore in 5 turn 10 molecules of CO2 will be produced.

The citric acid cycle also known as the Krebs cycle itself involves a chain of reactions that results in the production of two carbon dioxide molecules, one GTP/ATP molecule, and reduced NAD+ and FAD+.

10 molecules of carbon dioxide (CO2) would be produced by five turns of the citric acid cycle (option E).

  • In total, it was observed that one cycle of the Krebs cycle produces two carbon dioxide molecules.
  • Therefore, in five turns of the citric acid cycle, a total of 10 CO2 would be produced.

Learn more about the Krebs cycle: https://brainly.com/question/781283