Refer to the figure below. Which statement regarding channel proteins shown in the figure is false?
A) Channel proteins can assist polar molecules to cross the plasma membrane by facilitated diffusion.
B) The gated ion channel can allow ions to pass when stimulated to open.
C) The surface of a channel protein in contact with the bilayer would likely have hydrophilic amino acids.
D) Water plays a role in determining which ions are allowed to pass through an ion channel.
E) Aquaporins are channel proteins that facilitate the diffusion of water across membranes.

Question

Refer to the figure below.  Which statement regarding channel proteins shown in the figure is false?
A) Channel proteins can assist polar molecules to cross the plasma membrane by facilitated diffusion. 
B) The gated ion channel can allow ions to pass when stimulated to open. 
C) The surface of a channel protein in contact with the bilayer would likely have hydrophilic amino acids. 
D) Water plays a role in determining which ions are allowed to pass through an ion channel. 
E) Aquaporins are channel proteins that facilitate the diffusion of water across membranes.

Quizplus · Accepted Answer

Channel proteins have hydrophilic amino acids on the surface which allows them to interact with the polar molecules that they transport. Therefore, the statement that hydrophobic amino acids would be on the surface is false.

Refer to the Figure Below