When and Where Is the Asymmetry of the Phospholipid Bilayers

Multiple Choice

When and where is the asymmetry of the phospholipid bilayers initially established?

A) in the Golgi complex during lipid and protein modification
B) in the ER during lipid and protein synthesis
C) in the secretory vesicles during lipid and protein modification
D) in the mitochondria by random insertion into the membranes
E) all of these are correct