A cell membrane is a phospholipid bilayer that has polar and nonpolar areas. On both sides of the membrane are aqueous (water-based) fluids. What is an important function of the phospholipids in the cell membrane? (Points : 1)
The phospholipids help the cell maintain its internal aqueous environment.
The heads keep water away from the tails.
The phospholipids produce waxes to keep water out of the cell.
The polar areas of the phospholipids give the cell a positive electrical charge.
