Question

Give reason: If you sprinkle some common salt on grass growing on a lawn, it is killed at that spot.

Answer 1

Flaccid cell. In botany, a flaccid plant cell is one in which the plasma membrane is not pressed tightly against the cell wall. If a plant cell is placed in a hypertonic solution, the plant cell loses water and hence turgor pressure by plasmolysis: pressure decreases to the point where the protoplasm of the cell peels away from the cell wall, leaving gaps between the cell wall and the membrane and making the plant cell shrink and crumple. This is the reason why when we sprinkle some common salt on grass growing on a lawn, it is killed at that spot.