When a few plasmolysed cells are kept in ____________ solution, the cells become turgid.

Step-by-step solution

Plasmolysis occurs when a plant cell is placed in a hypertonic solution, causing water to move out of the cell and the protoplast to shrink away from the cell wall. When these plasmolysed cells are placed in a hypotonic solution, the water potential outside the cell is higher than inside. Water enters the cell by endosmosis, causing the protoplast to swell and press against the rigid cell wall. This builds up turgor pressure and makes the cell turgid again. Answer: hypotonic