Define: (i) Hypertonic solution (ii) Hypotonic solution
(i) Hypertonic solution: The solution outside the cell has a higher solute concentration than inside the cell. The water molecules move outside the cell from inside. It is called exosmosis.
A plant cell undergoes plasmolysis after putting in a hypertonic solution.
(ii) Hypotonic solution: The solution outside the cell has a lower solute concentration than inside the cell. The water molecules move inside the cell from outside. It is called endosmosis.
A plant cell becomes turgid after putting in a hypotonic solution.
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