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CO2 molecules are produced from five (5) glucose molecules in the Krebs Cycle.Group of answer choices2010155

Question

CO2 molecules are produced from five (5) glucose molecules in the Krebs Cycle.

Group of answer choices:

  • 20
  • 10
  • 5
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Solution

The Krebs Cycle, also known as the citric acid cycle, is a key component of cellular respiration - the process by which cells generate energy. Here's how it works:

  1. Each glucose molecule is broken down into two molecules of pyruvate through a process called glycolysis.

  2. Each pyruvate molecule is then converted into Acetyl CoA, which enters the Krebs Cycle.

  3. For each Acetyl CoA that enters the Krebs Cycle, two molecules of CO2 are produced.

So, if we start with five glucose molecules:

  1. These are broken down into 10 pyruvate molecules (because 5 glucose * 2 = 10).

  2. These 10 pyruvate molecules are converted into 10 Acetyl CoA molecules.

  3. Each of these 10 Acetyl CoA molecules produces 2 CO2 molecules when it goes through the Krebs Cycle, for a total of 20 CO2 molecules (because 10 Acetyl CoA * 2 = 20).

So, the answer is 20 CO2 molecules are produced from five glucose molecules in the Krebs Cycle.

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