Biology

Differentiate between Diffusion and Active transport.

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Sl. No.	Diffusion	Active transport
1.	It is the movement of molecules or ions of a substance from a region of their higher concentration to a region of their lower concentration.	It is the movement of ions of a substance from their lower concentration region to their higher concentration region using energy.
2.	It is the movement of solute or solvent molecules.	It is the movement of ions only (no water).
3.	No cell energy is needed.	Cell energy is needed in the form of ATP.
4.	It occurs through a non-living permeable membrane.	It occurs through a living selectively permeable membrane.

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