Facilitated Diffusion is Limited by _______

Question

Facilitated diffusion is limited by _______.
A) carrier proteins in the membrane
B) osmotic pressure
C) the size of the cell
D) the size of the pores in the membrane
E) the substrate concentration

Accepted Answer

Facilitated diffusion relies on carrier proteins in the membrane to transport substances across the cell membrane, and the number of these proteins can limit the rate of diffusion.