What are the Three Important Functions of the Lipid Bilayer

Question

What are the three important functions of the lipid bilayer of the plasma membrane?
A)​forms the basic membrane structure;hydrophilic interior acts as barrier;aids in RNA transfer
B)forms the basic membrane structure;hydrophobic interior acts as barrier;responsible for fluidity
C)forms the basic membrane structure;hydrophobic interior acts as barrier;aids in RNA transfer
D)allows electrical flow via nerves;hydrophobic interior acts as barrier;responsible for fluidity
E)​allows electrical flow via nerves;hydrophilic interior acts as barrier;responsible for fluidity

Accepted Answer

The lipid bilayer of the plasma membrane performs three important functions: forming the basic membrane structure, creating a hydrophobic interior that acts as a barrier to most substances, and responsible for the fluidity of the membrane. Option B correctly describes all three functions. Option A and C are incorrect as aiding in RNA transfer is not an important function of the plasma membrane. Options D and E are incorrect as allowing electrical flow via nerves and having a hydrophilic interior are not functions of the lipid bilayer of the plasma membrane.