Multiple choice

Although O2 does not participate directly in the........, cycle operates only when O2 is present

  1. Glycolysis

  2. Krebs Cycle

  3. Both

  4. None

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Krebs cycle does not use oxygen directly, but it requires the NAD+ and FAD regenerated by the electron transport chain, which only functions in the presence of oxygen.