The large number of alveoli in lungs improve gas exchange by ________.
A)decreasing the distance for diffusion
B)increasing the surface area for diffusion
C)increasing the concentration difference
D)changing the diffusion constant

Question

Quizplus · Accepted Answer

Increasing the surface area for diffusion by having a large number of alveoli allows for more gas exchange to occur. This is because there is more area available for gas exchange to take place, allowing for a greater diffusion rate.

The Large Number of Alveoli in Lungs Improve Gas Exchange