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How many electrons are removed when one molecule of glucose is metabolized through glycolysis? A. 8...

How many electrons are removed when one molecule of glucose is metabolized through glycolysis?

  • A. 8
  • B. 6
  • C. 12
  • D. 4
  • E. 2
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Answer #1

Answer is D - 4 electrons

One molecule of glucole splits to form two molecules of pyruvic acid. It uses 2 ATP to start the process and gets 4 ATP back in the end .So the net ATP usage is 2 .

4 high energy electrons are removed when one molecule of glucose undergoes glycolysis and are passed to an electron carrier. NAD+ removes 2 electrons and become NAD+ and H+ and this recation occurs twice removing 4 electrons. Electron carriers carry this high energy electrons to Electron transport chain.

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