The Composition of Lipids in the Outer and Inner Monolayers

Multiple Choice

The composition of lipids in the outer and inner monolayers of cell membrane lipid bilayers is

A) asymmetrical; i.e.,different in each monolayer.
B) identical in each monolayer.
C) twice as concentrated in the inner monolayer as in the outer monolayer.
D) highly random for each monolayer.
E) the same for all cell plasma membranes but different from the composition in mitochondrial and chloroplast membranes.