What would happen if the plasma membrane were composed solely of phospholipids and no proteins?
A) Simple diffusion and osmosis would continue to occur.
B) The movement of molecules across the membrane would not be affected.
C) All movement of molecules across the membrane would cease.
D) Immune reactions would not be affected.
E) Only water would be able to pass through the membrane.

Question

Quizplus · Accepted Answer

Proteins in the plasma membrane facilitate active transport and selective permeability, but simple diffusion and osmosis can still occur through the phospholipid bilayer without proteins.

What Would Happen If the Plasma Membrane Were Composed Solely