45. Which of the following is true about the distribution of phospholipids on cellmembranes?
(A) Under normal physiological conditions, the lateral diffusion rate ofphospholipids in the cell membrane is approximately several nanometers persecond.
(B) Compared with lateral movement, the transverse movement of phospholipidsbetween the inner and outer leaflets of the cell membrane is much faster.
(C) Floppase can actively transport amphiphilic lipids from the inner leaflet to theouter leaflet.
(D) When phosphatidylserine is found in the outer leaflet, scramblase uses theenergy of ATP to move it to the inner leaflet.
(E) The distribution ratio of phosphatidylserine in the inner and outer leaflets ofthe cell membrane is approximately the same.