The barrier function of the plasma membrane is accomplished by the:
A) receptor proteins.
B) glycoproteins.
C) rafts in the cell membrane.
D) phospholipids bilayer.

Question

Quizplus · Accepted Answer

The barrier function of the plasma membrane is most effectively accomplished by the phospholipid bilayer. This bilayer forms a semi-permeable barrier that separates the inside of the cell from the extracellular environment, preventing the free flow of molecules in and out of the cell. The other options listed (receptor proteins, glycoproteins, and rafts) are also important components of the plasma membrane but do not directly contribute to the barrier function of the membrane.

The Barrier Function of the Plasma Membrane Is Accomplished by The