Question

Why do O2 and CO2 pass through the plasma membrane?

they are nonpolar and soluble
they are facilitated by protein
they are "pumped" through
they undergo pinocytosis

Answer 1

O2 and CO2 pass back and forth through the membrane/phospholipid bilayer due to simple diffusion.

Diffusion can only occur because of the polarity and solubility of elements or molecules

Answer 2

THanks