Final answer:
Epidermal cells on the roots form extensions known as root hairs to absorb water and nutrients, thereby enhancing the plant's growth and nutrient uptake by increasing the root surface area.
Step-by-step explanation:
In dermal tissue, epidermal cells on the roots form extensions called root hairs to absorb water and nutrients. These root hairs are extensions of root epidermal cells, and they significantly increase the surface area of the root. This increase in surface area is crucial for the absorption of water and minerals from the soil, facilitating the plants' access to the essential resources they need to grow and thrive.
The function of root hairs is to absorb water and minerals, but they are also involved in creating a larger soil volume within their reach to enhance nutrient uptake. The epidermis provides protection and plays a vital role in absorption, making it an essential component of the plant's dermal tissue system. Additionally, it secretes a waxy substance called cuticle, which helps prevent water loss and protects against environmental damage.