Question

The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded proteins?

A.
preventing the phospholipid tails from binding together
B.
defining the cell's structure and shape
C.
allowing specific substances to flow into the cell
D.
protecting the cell from physical harm

Answer 1

I think the answer is D

The plasma membrane protects the cell from its external environment, mediates cellular transport, and transmits cellular signals.

Answer 2

C

Step-by-step explanation:

Diffusion or passive transport