Question

Which statement best describes the plasma membrane of a living plant cell?

The plasma membrane of a plant cell is

a
designed to allow for the free flow of all protein substances to move into and out of the cell.
b
composed of two layers of proteins with floating molecules of lipids only.
c
composed of two layers of proteins and carbohydrates only.
d
designed to allow certain substances to enter and certain substances to exit the cell.

Answer 1

d) designed to allow certain substances to enter and certain substances to exit the cell.