The PO2 (in mm Hg) inside skeletal muscle cells during exercise is closest to:: (A) 3, (B) 10, (C) 20, (D) 30
Answer is A. The PO2 (in mm Hg) inside skeletal muscle cells during exercise is closest to - 3mm Hg The PO2 decreases severly due to muscle's oxygen demand is very high.