Why do you find yourself gasping for breath after sprinting a short distance? (Hint: Explore 'oxygen debt' and identify the metabolic pathway that requires oxygen.)

True or False: Glycolysis, the citric acid cycle, and the electron transport chain are three individual reactions that independently produce ATP. Justify your answer.

Determine the ATP yield from the oxidation of six molecules of FADH₂. 

6 FADH₂ → 6 FAD