Both phospholipids and proteins are asymmetrically located in cell membranes - meaning the outer half and the inner half of the bilayer contain different phospholipids and the proteins have a cytoplasmic side and an "out" side. in experiments when detergents are used to disrupt the cell membrane, a water soluble mixture of lipids and proteins is the result. then, if the detergents are subsequently removed by dialysis, the lipid bilayer will reform spontaneously with the proteins included. except now the asymmetry is gone and both proteins and lipids are located randomly in the newly formed membrane. what does this result tell you about how the cell synthesizes cellular membranes