Comparison between Endodermis and Epidermis
Endodermis
- Endodermis is the deepest layer of cells lying between the cortex and the vascular tissue.
- It is in a plant stem or root, a tube of cells the separates the external cortex from the central core the endodermis controls flow of water and minerals within the plant.
- Endodermis cells lie in the area of cortex. It is the deepest layer of cortex.
- It is also called as starch sheath. It is a single layer of tightly packed cells.
- Function: It acts as a stellar sheath and it also stores food.
Epidermis
- Epidermis is the outermost layer of intimately arranged living cells without any intercellular spaces forming a boundary between the plant and the outer environment.
- Epidermis is the outer, shielding layer of the skin of vertebrates, covering the dermis.
- It protects the plant from water loss, regulates the exchange of gases, and secretes metabolic compounds. It also helps in inclusion of water and minerals from the soil in roots.
- Epidermis is made up of sole layer of intimately packed living cells. Most of the time, the walls of epidermal cells are thick and are covered with thick layer called cuticle.
- Functions of epidermis: protect underlying tissues.
