The movement of oxygen from a region of higher concentration to a region of lower concentration without the expenditure of energy is
A) active transport
B) facilitated diffusion
C) pinocytosis
D) simple diffusion
E) osmosis

Question

Quizplus · Accepted Answer

Simple diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration without the use of energy.

The Movement of Oxygen from a Region of Higher Concentration