Molecules assisted by carrier proteins may cross a selectively permeable membrane by
A) simple diffusion.
B) osmosis.
C) facilitated diffusion.
D) endocytosis.
E) active transport.

Question

Quizplus · Accepted Answer

Facilitated diffusion is the process by which molecules cross a cell membrane with the help of carrier proteins, without the expenditure of cellular energy.

Molecules Assisted by Carrier Proteins May Cross a Selectively Permeable