Ncert Exercises & Solutions

Q.4 A flowering plant is planted in an earthen pot and irrigated. Urea is added to make the plant grow faster, but after sometime the plant dies. This may be due to ..........

The plant dies due to exosmosis. As the solution outside the plant is an hypertonic solution and the plant celsl are hypotonic in nature, so there is a gradual movement of water from plant cell to outside urea solution leading to plasmolysis of root cells and plant dies gradually.