10. Cell membranes are asymmetrical. Which of the following statementsare the most likely explanations for the membrane's asymmetrical nature?
(A) Since the cell membrane forms a border between one cell and anotherin tightly packed tissues such as epithelium, the membrane must beasymmetrical.
(B) Since cell membranes communicate signals from one organism toanother, the cell membranes must be asymmetrical.
(C) The two sides of a cell membrane face different environments andcarry out different functions.
(D) Proteins only function on the cytoplasmic side of the cell membrane,which results in the membrane's asymmetrical nature.
(E) The two sides of membrane are structurally different. Differentphospholipids are found in each side of the membrane.