Keeping in view the fluid mosaic model for the structure of cell membrane which one of the following statement is correct w.r.t. the movement of lipids and proteins from one lipid monolayer to the other ( described as flip- flop movement ) ?

Options

A. Both lipids and proteins can flip-flop
B. While lipids can rarely flip-flop, proteins cannot
C. While proteins can flip-flop, lipids cannot
D. Neither lipids, nor proteins can flip-flop

Answer

B