27.2k views
4 votes
The plasma membrane

a. allows all substances to pass into and
out of the cell
b. prevents all substances from passing
into and out of the cell
c. is composed mainly of a protein bilayer.
d. is composed mainly of a lipid bilayer.

User Shivang
by
4.1k points

1 Answer

3 votes
The answer is A that’s what it does
User Nitya
by
4.9k points