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A plasmolysed cell can be deplasmolysed by placing it in
- a)isotonic solution
- b)hypertonic solution
- c)saturated solution
- d)pure water or hypotonic solution
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
A plasmolysed cell can be deplasmolysed by placing it ina)isotonic sol...
Explanation:
Plasmolysis and deplasmolysis:
Plasmolysis is the process in which a cell loses water and shrinks away from the cell wall due to being placed in a hypertonic solution. Deplasmolysis is the reversal of plasmolysis, where a plasmolysed cell gains water and returns to its original state.
Deplasmolysis of a plasmolysed cell:
To deplasmolyse a plasmolysed cell, it needs to be placed in a solution that has a lower solute concentration than the cell's cytoplasm. This allows water to move back into the cell by osmosis, causing the cell to regain its original shape and size.
Options for deplasmolysis:
- Isotonic solution: An isotonic solution has the same solute concentration as the cell's cytoplasm, so it would not cause water to move into the plasmolysed cell.
- Hypertonic solution: Placing a plasmolysed cell in a hypertonic solution would further dehydrate the cell, making it more shriveled.
- Saturated solution: A saturated solution has a high solute concentration and would not be suitable for deplasmolysing a plasmolysed cell.
- Pure water or hypotonic solution: Placing a plasmolysed cell in pure water or a hypotonic solution would provide a lower solute concentration outside the cell, allowing water to move back into the cell and deplasmolyse it.
Therefore, the correct option for deplasmolysing a plasmolysed cell is option D: pure water or hypotonic solution.
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A plasmolysed cell can be deplasmolysed by placing it ina)isotonic solutionb)hypertonic solutionc)saturated solutiond)pure water or hypotonic solutionCorrect answer is option 'D'. Can you explain this answer?
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