Specialised cells part 2 Flashcards
What does the xylem do?
Transports water and solutes from the roots to the leaves.
What does the phloem do?
Transports food and water form the leaves to the rest of the plant.
What is the xylem made of and why?
Dead cells so water isn’t absorbed during this process.
What is in the xylem?
Water and minerals.
What are there none of between cells?
End walls.
What are the walls stiffened with?
Thick walls are stiffened with lignin to allow stretching.
Where is water absorbed from?
Absorbed from the soil to the root hair cells.
Where is the water then transported to?
It is transported through the xylem up the stem to the leaves.
Where does the water then go after the leaves?
Evaporates from the leaves (transpiration)?
What is the phloem involved in?
Translocation.
What is translocation?
The movement of food substances from the stems to growing toissues and storage tissues.
What is in the phloem?
Water and food
Does the phloem have end walls?
Yes with perforations (small holes).
Which of the xylem and phloem have a two way flow?
Phloem
