試題詳解

 (1) These barriers are set up by nanoscale lipid raft domains.

(2) Proteins normally cannot pass through these barriers, whereas any membrane lipid can do so freely. 

(3)The  asymmetric distribution of membrane proteins resulting from these barriers is functiona

(4) These barriers are a result of proteins of the apical surface forming a large aggregate that excludes proteins of the other domains.
(A) (I), (2) and (3)
(B) (2), (3) and (4)
(C) (1) and (4)
(D) (1), (2) and (4)
(E) All of the above