Question

List three main characteristics of the roots that enable them to draw water from the soil.

Answer 1

1. Roots have a large surface area due to their fine branching, allowing more contact with the soil and improving water absorption.
2. Root cells actively pump mineral ions into themselves, lowering their water potential relative to the soil. This osmotic gradient promotes water intake.
3. Root hairs, which are extensions of root epidermal cells, significantly improve the surface area for water and nutrient absorption. Their thin cell walls allow for effective water uptake.