Which of the following is impervious to water?
Cortical cells with suberised walls
Endodermal cells with suberised walls
Endodermal cells with cellulosic walls
Cortical cells with cellulosic walls
The innermost layer of the cortex is endodermis. The endodermal cells have suberised Casparian strips which is impervious to water. Hence, the correct answer is option b.