A soccer player has been sprinting up and down the field. She is breathing
very hard and has a burning sensation in her muscles. Which of these is the
most likely cause of the burning in her muscles?
A. Fermentation produced too much lactate due to anaerobic
conditions.
B. Glycolysis produced too much pyruvate due to aerobic conditions.
C. The Krebs cycle used up too much carbon dioxide.
D. Electron transport chains produced too much ATP.