Question

What is true of the O2 debt?

Answer 1

Answer: A) It is acquired during aerobic respiration

C) Homeostasis is re-established when O2 debt is paid off by post-exercise heavy breathing.

Explanation:

The oxygen debt is a condition when muscles of the body requires extra oxygen during strenuous and vigorous exercise. During exercise the body and the muscles experience lack of oxygen, the available glucose is converted into lactic acid. It takes place during the aerobic respiration (the process which involve the break down of food in the presence of oxygen). The body maintains the homeostasis when the oxygen demand is fulfilled by sound respiration and cardiovascular activity. This is accomplished by heavy breathing and increase in heart rhythm to pump more oxygenated blood to the body.