Structure and functions of the xylem and Phloem
- Created by: elle1999
- Created on: 20-01-16 17:35
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- Structure and function of the Xylem and Phloem
- Xylem
- Non living tissue
- Several types of cells fusing together
- Transport of water and mineral ions and support
- Parenchyma packs store food
- Lignified cells provide mechanical strength
- Prevents water leaving
- Pits unlignified- water leaves
- Phloem
- Living cells
- Transports food in form of living solutes.
- Sugars and amino acids needed for cellular respiration
- Main transporting
- Sieve tube- joined end to end
- Not lignified
- Sieve plates- let phloem contents flow through
- Companion cells
- Join with sieve
- Life support cells
- Xylem
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