A Level Biology – Xylem
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Question 1 of 25
1. Question
Is the diagram showing a section of a leaf, root or stem?
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Question 2 of 25
2. Question
On the diagram what is tissue A?
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Question 3 of 25
3. Question
On the diagram what is tissue B?
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Question 4 of 25
4. Question
On the diagram what is tissue C?
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Question 5 of 25
5. Question
On the diagram what is tissue D?
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Question 6 of 25
6. Question
On the diagram what is tissue E?
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Question 7 of 25
7. Question
On the diagram where does the apoplast pathway of water movement stop?
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Question 8 of 25
8. Question
On the diagram which is meristem tissue?
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Question 9 of 25
9. Question
Which plant tissue is the main transport vessel for water?
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Question 10 of 25
10. Question
Which cells have the casparian strip which prevents the apoplast pathway?
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Question 11 of 25
11. Question
True or false xylem vessels have small holes in their walls to allow lateral movement of water between vessels?
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Question 12 of 25
12. Question
Xylem vessels have small holes in their walls. What are they called?
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Question 13 of 25
13. Question
What is the name of the material found in xylem vessel walls which makes them waterproof?
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Question 14 of 25
14. Question
What is the name of the movement of water from roots to leaves through xylem?
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Question 15 of 25
15. Question
The evaporation of water from plants is the definition of which term?
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Question 16 of 25
16. Question
Water molecules hydrogen bonding to other water molecules is the definition of which term?
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Question 17 of 25
17. Question
Water molecules hydrogen bonding to other molecules is the definition of which term?
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Question 18 of 25
18. Question
Why can water molecules form hydrogen bonds?
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Question 19 of 25
19. Question
True or false it is important for lignin to provide structural strength to xylem vessels to prevent them collapsing under tension?
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Question 20 of 25
20. Question
Which piece of equipment is used to measure the rate of water uptake in plants?
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Question 21 of 25
21. Question
What is a key aspect of setting up the apparatus to measure the rate of water uptake in plants?
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Question 22 of 25
22. Question
If you were comparing transpiration rates of several species of leaf, what feature of the leaves should be measured to obtain a fair comparison?
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Question 23 of 25
23. Question
If the level of humidity was raised what would happen to the rate of transpiration?
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Question 24 of 25
24. Question
If the level of air movement was raised what would happen to the rate of transpiration?
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Question 25 of 25
25. Question
Through which structure does water vapour leave the leaf?
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