Questions: How many ATP are used to initiate glycolysis?

How many ATP are used to initiate glycolysis?
Transcript text: How many ATP are used to initiate glycolysis?
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Solution

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The answer is the first one: 2.

Explanation for each option:

  • 2: Correct. Glycolysis requires the investment of 2 ATP molecules in the initial steps to phosphorylate glucose and convert it into fructose-1,6-bisphosphate.
  • 4: Incorrect. Only 2 ATP molecules are used in the initial steps of glycolysis.
  • 5: Incorrect. This number is not associated with the ATP investment phase of glycolysis.
  • 8: Incorrect. This is far more than the actual number of ATP molecules used to initiate glycolysis.

Summary: To initiate glycolysis, 2 ATP molecules are used.

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