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Question

What will happen to onion peel cells when you put few drops of concentrated salt solution on the prepared slide of onion peel? Give reason.

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Solution

Changes due to concentrated salt water:

  1. As the concentrated salt solution is introduced, the cells of onion peel are subjected to a hypertonic solution in the surrounding.
  2. The concentrated salt solution is hypertonic as it has a higher salt concentration compared to the salt concentration of the onion peel cells,
  3. This is why the water moves towards the outside till an equilibrium concentration is reached.
  4. ​The process because of which water moves towards the outside is called exosmosis.

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