Why are lipids and proteins free to move laterally in membranes? A) The interior of the membrane is filled with liquid water.
B) There are no covalent bonds between lipid and protein in the membrane.
C) Hydrophilic portions of the lipids are in the interior of the membrane.
D) There are only weak hydrophobic interactions in the interior of the membrane.
E) Molecules such as cellulose can pull them in various directions.