The plasma membrane of human RBC possess all except

Chemical studies on the cell membrane, especially in human red blood cells (RBCs), enabled the scientists to deduce the possible structure of plasma membrane.

Biochemical investigation clearly revealed that the cell membranes also possess protein and carbohydrate. The ratio of protein and lipid varies considerably in different cell types. In human beings, the membrane of the erythrocyte has approximately 52 per cent protein and 40 per cent lipids.

Sugars are attached to the lipid or protein component of the plasma membranes.There is no cellulose.Cholesterol is present within the cell membrane that gives stability .