Plasma Membrane lic portions of the re exposed to water Outside cell Proteins can move de of the membrane laterally through the Carbohydrate phospholipid bilayer. side chains hyd rophobic portions in the hydrophobic core me proteins receive channels through which of the membrane signals from the ions and molecules can enter and leave the cel outside the cell 0 and pass them on to the inside of the cell phospholipid while others extend Inside cell only part way into the bilayerPlasma Membrane