Question

The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded proteins?
A.
allowing specific substances to flow into the cell
B.
defining the cell's structure and shape
C.
preventing the phospholipid tails from binding together
D.
protecting the cell from physical harm

Answer 1

To allow the larger molecules such as starch and glucose to pass thoroughbred membrane.

Answer 2

Diffusion/passive transport. Requires protein channels to allow passage through the membrane