Biology for IGCSE & O level - Movement Into And Out Of Cells (Section 5 - No. 40)
What is the difference between diffusion and active transport?
Diffusion moves molecules against a concentration gradient, while active transport moves them down a concentration gradient.
Diffusion requires energy, while active transport does not.
Diffusion moves molecules down a concentration gradient, while active transport moves them against a concentration gradient.
Diffusion uses carrier proteins, while active transport uses channel proteins.
Explanation
Diffusion is the movement of molecules from a high concentration to a low concentration, whereas active transport is the movement from low to high, thus requiring energy.
Comments (0)
