Question

What are the xylem and phloem tissues?

Answer 1

Xylem and phloem are two types of vascular tissues which are specialized cells with the transport of water, hormone and minerals throughout the plant.
Xylem
1. They are dead with hollow cells, which consist of only cell wall.
2. They play a vital role in transporting water and dissolved nutrients from the roots to all parts of a plant.
3. They transport the nutrients in the upward direction .i.e. from the root to the stem, leaves and flower.
4. Xylem is also called as water-conducting cells.
Phloem
1. They are live cells, which lack nucleus and other organelles.
2. They transport dissolved organic food materials (sugars) from the leaves to all parts of a plant.
3. They transport the nutrients in the downward direction .i.e. from the leaves to the different parts of the plant.
4. Phloem is also called as sugar-conducting cells.