Question

Plasma membrane is asymmetric because
(1) Lipids present in the outer and inner side of
the bilayer are different
(2) Extrinsic proteins are more abundant on the
inner surface than on the outer surface
(3) Oligosaccharides are attached only to the
external surface of lipids and proteins of a
biomembrane
(4) All of the above

Answer 1

I think option 1

lipid present in the out and inner side of the bilayer is different

Answer 2

Answer:

Plasma membrane is asymmetric because

(1) Lipids present in the outer and inner side of

the bilayer are different √√√

(2) Extrinsic proteins are more abundant on the

inner surface than on the outer surface

(3) Oligosaccharides are attached only to the

external surface of lipids and proteins of a

biomembrane

(4) All of the above