Oxygen debt is

A. False It is the amount of O2 in excess of resting needs consumed after exercise stops.

B. False O2 uptake across pulmonary capillary walls is not usually diffusion limited.

C. True The O2 debt incurred during anaerobic metabolism is repaid later.

D. True This is generated during anaerobic metabolism.

E. True Due to the lactic acid, blood HCO3 falls as the lactic acid is buffered.