Question

How plasma membrane diffuse across plasma membrane

Answer 1

Certain proteins in the membrane assist facilitated diffusion by permitting only certain molecules to pass across the membrane. The proteins encourage movement in the direction that diffusion would normally take place, from a region with a higher concentration of molecules to a region of lower concentration.These following methods are taken up by the process diffusion

Answer 2

The basic structural framework of theplasma membrane is the lipid bilayer. Non polar,hydrophobic moleculesdiffuse freely through the lipid bilayer of the plasma membrane of cells without the help of membranetransport proteins.Eg: O2,CO 2,Nitrogen gases,fatty acids,steroids,fat soluble vitamins.