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| Permeability |
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| Permeable |
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| Permeable membrane allows free movement of water and solutes in and out of the cell. |
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| Example: Cell wall in plant cells |
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| Impermeable |
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| Impermeable membranes prevent diffusion of water and solutes into protoplasm of cell. |
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| Example: Submerged walls of cork cells |
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| Semipermeable |
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| Semipermeable membranes are alive and selective in their action. These membranes allow solvent of one side to move freely but at the same time resist the movement of solutes. Due to their selective nature such membranes are called selectively permeable membranes or differentially permeable membranes. |
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| Example: Plasma membrane or cell membrane |
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| Leaf Cell in Isotonic Solution |
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Leaf Cell in Hypertonic Solution |
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| Leaf Cell in Hypotonic Solution |
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