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Osmosis helps in exchange of water in unicellular organisms and plants.

In plants, roots are in contact with water present inside soil. SInce concentration of water is less in the roots as compared to soil, osmosis takes place and water enters the roots to eliminate the difference.

The same process also occurs in unicellular organisms.
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Osmosis is the spontaneous movement of a water through a cellular membrane.osmosis is a vital function to the growth and stability of plant life.Without osmosis, photosynthesis would never occur and plants would wilt and die..

hope it's help u
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