Physiology Mechanics of Respiration c572e395 V/Q ratio at the base of lung- A 1 B 3 C 0.6 D 1.8 High-Yield Explanation Ans. is 'c' i.e., 0.6 o Overall V/Q ratio of lung-0.8o V/Q ratio at apex-3.0 (maximum)o V/Q ratio at base-0.6 (Least)