Botany - Anatomy of Flowering Plants Question with Solution | TestHub

The root hairs are unicellular, unbranched elongations of the epidermal cells and help absorb water and minerals from the soil. The epidermal hairs on the stem are called trichomes. The trichomes are usually multicellular. They may be branched or unbranched and soft or stiff. They may even be secretory. The trichomes help in preventing water loss due to transpiration.