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Cell and Cell Organelles — Science STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8ScienceCell and Cell Organelles3 Marks
Question
Raisins swell after keeping in plain water.
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Answer

When raisins are placed in plain water, there is action of endosmosis. The outer skin of raisins acts like selectively permeable membrane. Since the concentration of water inside the raisin is lesser than the concentration of water in the outer medium, water enters in the raisin. This causes raisins to swell after keeping them in plain water.

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