The Main Function of the Plasma Membrane Is To

Multiple Choice

The main function of the plasma membrane is to:

A) provide the interior of the cell an enclosed environment which no molecules may cross.
B) provide a selectively permeable barrier with the aid of transport proteins.
C) give eukaryote and prokaryote cells structural strength.
D) allow only the free passage of water in and out of the cell.
E) None of the above.