function of Phospholipids, Cholestrol, Glycolipids, Glycoproteins, and Proteins

	Phospholipids	Cholesterol	Glycolipids	Glycoproteins	Proteins
					Channel Protein	Carrier Protein
Definition	Form of bilayer in hydrophobic and hydrophilic	Another lipid component of cell membranes, attached to the phospholipids	Located on surface and have a carbohydrate sugar chain		Two types of protein that help the communication of cells
Functions	Barrier to most water-soluble substances	Increases the fluidity of membrane	Help the cells to recognize other cells to the body	Help in the communication between the cells	Help cells communicate with external environment	Transport molecules across cell membranes through facilitated diffusion