Stomata
The epidermis on the outside of a root is called the root epidermis. It is responsible for absorbing water and nutrients from the soil. Just beneath the root epidermis is the root cortex, which stores carbohydrates and provides structural support to the root.
Root hairs are the single thread-like cells that are found on the root epidermis. They increase the surface area of the root for absorption of water and nutrients from the soil.
is epidrmis present in root hairs
The special structural character that the root epidermis possess is the root hairs which enables it perform its functions effectively.
Root hairs are extensions of root epidermis cells that help increase the surface area of the root for improved absorption of water and nutrients from the soil.
epidermis
The lower epidermal layer of leaf has many holes (stomata) in it and guard cells surrounding these holes. In the roots the epidermis has many root hairs growing out of it or regions of dead root hairs where over time the roots have grown longer and the old root hairs are no longer needed to capture water. In the upper epidermis of a leaf you would see palisade cells just beneath the epidermal layer and a waxy cuticle just above.
"As you recall, epidermis (1) is the outermost cell layer of leaves, roots and stems. Unlike the root epidermis, stem and leaf epidermis contain stomata (more on stomata when we discuss photosynthesis). In many plants, leaf and stem epidermis is covered by a wax-like layer of cutin, which protects the plants from excessive water loss, and from pathogen attack."
Water and minerals pass through the root epidermis and root cortex cells to reach the xylem in plant roots. The root epidermis is the outermost layer of cells in the root, and the root cortex is a region of parenchyma cells between the epidermis and the vascular tissue (xylem and phloem).
The Cortex
on the epidermis.
Epidermis dermatitis