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

Question

Quizplus · Accepted Answer

The movement of molecules from an area of lesser concentration to an area of greater concentration is called active transport. This process requires energy, usually in the form of ATP, and is essential for maintaining concentration gradients across cell membranes. Diffusion is the movement of molecules from an area of greater concentration to an area of lesser concentration, while facilitated diffusion involves the movement of molecules across a membrane with the help of transport proteins. Filtration involves the movement of fluids and solutes through a semipermeable membrane due to pressure differences.

The Movement of Molecules from an Area of Lesser Concentration