To make a monocot root cross-section diagram, you will need paper, pencil and, if you have one, a compass. Make sure your label your drawing. The internal structure of a monocot root like maize, rice, wheat etc. has the following tissue;
1. Epidermis: The epidermis or outermost layer of the root is known as rhizodermis. Root hairs in epidermis absorb water and minerals salt.
2. Cortex: The cortex lies below the epidermis. It help in conduction of water and minerals salts from root hairs to inner tissues and storage of food.
3. Endodermis: It is innermost layer of cortex and regulates flow of fluid both inward and outward.
4. Stele: It consists of pericycle and vascular tissues where pericycle lies just below the endodermis.