The types of elements that make up the xylem tissue are as follows :
Tracheids serve the upward conduction of water and dissolved minerals in all vascular plants.
Vessels constitute the major part of the water transporting system in the plants and form an efficient system for transporting water and necessary minerals from the root to the leaves and other parts of the plant.
3. Xylem fibres
Xylem fibres are supportive in function which is responsible for transporting food from the leaves to the other parts of the plant.
4. Xylem parenchyma
The xylem parenchyma is responsible for storing the prepared food and assists in the conduction of water.