Question

Differentiate between Plasmolysis and Deplasmolysis.

Hint:

Plasmolysis is observed in hypertonic solutions (water moves out), while deplasmolysis occurs in hypotonic solutions (water moves in).

Answer 1

Plasmolysis is the process in which the plasma membrane of a plant cell pulls away from the cell wall due to water loss when the cell is placed in a hypertonic solution. In this state, water moves out of the cell, causing the cytoplasm to shrink. Deplasmolysis is the reverse process of plasmolysis, where the cell is placed in a hypotonic solution, causing water to move into the cell. This results in the plasma membrane pushing against the cell wall as the cell becomes turgid again. - Plasmolysis occurs when the plant cell loses water, leading to shrinkage of the cytoplasm.
- Deplasmolysis occurs when the plant cell gains water, causing the cytoplasm to expand and the plasma membrane to press against the cell wall.
The key difference between plasmolysis and deplasmolysis is the direction of water movement: plasmolysis involves water loss, while deplasmolysis involves water gain.