Water is absorbed from outside solution only when it is

Isotonic

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Hypotonic

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Hypertonic

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None of these

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Solution

The correct option is B Hypotonic
Water is absorbed from outside solution only if the external medium is hypotonic because a hypotonic solution has more concentration of solvent molecules than the fluid inside the cell. So, solvent molecules move inside the cell from the region of higher concentration to the lower concentration by the process of endosmosis. The cell swells and increases in size.
So, the correct answer is option B.

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