Simple diffusion of molecules occurs
A) from an area of lesser concentration to an area of greater concentration.
B) in non-living systems as well as living systems.
C) across plasma membranes only through transport proteins.
D) until those molecules are more highly concentrated on one side of the plasma membrane.
E) only in molecules that are in gaseous state.

Question

Quizplus · Accepted Answer

Simple diffusion of molecules can occur in non-living systems such as in air or water as well as in living systems such as within cells or between cells.

Simple Diffusion of Molecules Occurs