Which is not a reason gas exchange is efficient at the blood air barrier?
A) Partial pressure differences are substantial.
B) Distance is short.
C) Surface area is large.
D) Gap junctions facilitate fast movement.
E) Gases are lipid soluble.

Question

Quizplus · Accepted Answer

Gap junctions are not involved in gas exchange. They are found in certain types of cells and allow direct communication between them, but they are not present in the blood air barrier. The other four choices all contribute to the efficiency of gas exchange at the blood air barrier.

Which Is Not a Reason Gas Exchange Is Efficient at the Blood