The movement of molecules from an area of greater concentration to an area of lesser concentration is called:
A)active transport
B)diffusion
C)pinocytosis
D)filtration

Question

Quizplus · Accepted Answer

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration without using energy or any outside force. Active transport needs energy to move molecules from an area of lower concentration to an area of higher concentration. Pinocytosis and filtration relate to the movement of larger substances or fluids across membranes.

The Movement of Molecules from an Area of Greater Concentration