Question

Diffusion is______________.

• A. The movement of molecules from lower concentration to higher concentration.
• B. The movement of molecules from higher concentration to lower concentration.
• C. The movement of molecules that depends on pressure.
• D. All of the above.

Answer 1

The correct option is B The movement of molecules from higher concentration to lower concentration.

Diffusion refers to the movement of molecules from higher concentration to lower concentration. It follows the concentration gradient.