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Question

What is plasmolysis and deplasmolysis?


Solution

Plasmolysis

1. It refers to the shrinking and seperation of the cell membrane from the cell wall due to exosmosis.

2. Water Molecules move out of the cell.

3. Occurs during exosmosis.

4. Occurs when cell are placed in a "Hypertonic solution".

5. Occurs when the solute concentration of the Surrounding solution is higher than that of the Cytoplasm.

6. Occurs when the water potential of the surrounding solution is less than that of cytoplasm

7. The Cells may Shrink.

8. Osmotic Pressure of the cell is very Low.

Deplasmolysis

1. It refers to the entrance of water into a plasmolysed plant cell, causing the cell membrane to return to the cell wall.

2. Water Molecules move into of the cell.

3. Occurs during Endosmosis.

4. Occurs when cells are placed in a Hypotonic Solution.

5. Occurs when the solute concentration of the surrounding solution is less than that of cytoplasm.

6. Occurs when the water potential of the surrounding solution is higher than that of cytoplasm.

7. The cells may Swell.

8. Osmotic Pressure of the Cell wall is very High.

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