Answer:
Xylem is a conducting tissue found in plants. It is responsible for transporting water and minerals from the roots to all the other parts of the plant.
Xylem is composed of cells (called elements) of four different types:
1. Tracheids;
2. Vessels or tracheae;
3. Xylem parenchyma, and
4. Xylem sclerenchyma (or fibre).
Except xylem parenchyma, all other xylem elements are dead and bounded by thick lignified walls.