Transportation in plants involves the movement of substances like water, minerals, and food from one part of the plant to another. This is facilitated by the plant's conducting tissues - xylem and phloem. Xylem transports water and minerals upward from the roots through three main cell types: tracheids, vessels, and xylem parenchyma. Tracheids and vessels are elongated, thick-walled dead cells that provide support and allow for the upward movement of water. Xylem parenchyma are living cells that store food and transport water and minerals.

2. Class -1

5. What do you mean by transportation
in plants??
• Process in which substances whether
absorbed or synthesized by plants move from
one part to another.
• Examples : 1) The prepared food is
transported to all parts of plant body.
2) Water absorbed by roots
move upwards to various parts.

6. Conducting system
• Transporting system in plants.
• Consists of two tissues – Xylem and Phloem.
• Xylem transports water and minerals.
• Phloem transports prepared food.

7. • Xylem components –
• TRACHEIDS
• VESSELS
• XYLEM PARENCHYMA
• XYLEM SCLERENCHYMA
Transport of Water and Minerals- XYLEM

8. 1. Tracheids – Elongated, thick walled, spindle
shaped cells. Dead cells. Tapering ends.
- Lateral pores- Pits present
- Provides mechanical support, conduct water
upwards.

9. 2. Vessels
- Tube like cells. Dead cells. Placed one above other
to form long channels.
- Provides mechanical support, conduct water
upwards.

10. • 3. Xylem or Wood Parenchyma
• Small, thick walled, LIVING CELLS
• Store food, conduct water and mineral salts
• No mechanical support.

11. • Xylem Sclerenchyma ( Wood fibres)
• Thick walled, long, narrow cells
• Tapering ends, dead cells.
• Only mechanical support

12. Xylem Structure sculpture at Kew Botanic Gardens,UK