Since the plasma membrane blocks the passage of all but a few molecules with specific traits, it is necessary for other molecules to
A) pass through the membrane via pores made of carbohydrates.
B) be broken down into their constituent atoms to move through the membrane.
C) be converted into other types of molecules so that they meet the specific traits necessary.
D) pass through the membrane via nucleic acids.
E) pass through the membrane via proteins.

Question

Quizplus · Accepted Answer

The plasma membrane is selectively permeable, allowing certain molecules to pass through it via protein channels or carriers. These proteins facilitate the transport of molecules that cannot directly pass through the lipid bilayer.

Since the Plasma Membrane Blocks the Passage of All but a Few