Which of the Following Factors is NOT Required for High

Question

Which of the following factors is NOT required for high efficiency gas exchange?
A)moist surface
B)large surface area
C)low diffusion distance
D)high cell volume

Accepted Answer

High cell volume is not required for high efficiency gas exchange. In fact, a large cell volume may actually decrease efficiency because it increases the diffusion distance for gases. Moist surface, large surface area and low diffusion distance are required for efficient gas exchange.