Differentiate diffusion and active transport.

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Solution

Diffusion:
It is the movement of the molecules or ions of a substance from a region of their higher concentration to a region of their lower concentration.
Active transport:
It is the movement of the molecules or ions of a substance from a region of their lower concentration to a region of their higher concentration region using energy.
Diffusion Active transport
1. It is the movement of the molecules or ions of a substance from a region of their higher concentration to a region of their lower concentration. 1. It is the movement of the molecules or ions of a substance from a region of their lower concentration to a region of their higher concentration region using energy.
2. It is movement of solute or solvent molecules. 2. It is the movement of ions only.
3. Cell energy is not required. 3. Cell energy is required in the form of ATP.
4. It occurs through a non living permeable membrane. 4. It occurs through a living selectively permeable membrane.

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Diffusion	Active transport
1. It is the movement of the molecules or ions of a substance from a region of their higher concentration to a region of their lower concentration.	1. It is the movement of the molecules or ions of a substance from a region of their lower concentration to a region of their higher concentration region using energy.
2. It is movement of solute or solvent molecules.	2. It is the movement of ions only.
3. Cell energy is not required.	3. Cell energy is required in the form of ATP.
4. It occurs through a non living permeable membrane.	4. It occurs through a living selectively permeable membrane.