Which of the Following Statements Is Consistent with the Structure

Multiple Choice

Which of the following statements is consistent with the structure of biological membranes?

A) All membrane proteins are integral and associate with the hydrophobic region of the membrane.
B) Both proteins and lipids readily undergo transverse ("flip-flop") diffusion from the inside to the outside of the membrane.
C) Membranes are symmetric.
D) The membrane lipids self-assemble to form the lipid bilayer.
E) A biological membrane consists of proteins sandwiched between two layers of lipids, which are referred to as a lipid bilayer.