CAPE Biology Unit 2 · 2009 · Paper 2 · Question 2(a)
Structure and function of xylem vessels.
State FOUR structural features of xylem vessels.
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- 2(b)Using THREE of the features listed in (a), explain how EACH feature facilitates the conduction of water and mineral salts in plants.[3 marks]
- 2(c)(i)Identify the tissues labelled A, B, C and D on Figure 3.[2 marks]
- 2(c)(ii)In the box provided, draw a plan diagram to show the distribution of the major tissues of the artery wall in Box A of Figure 3 at twice the size.[5 marks]
- 2(c)(iii)Given that Figure 3 has been magnified 100 times, calculate the ACTUAL width of the artery wall in the region of Box A.[1 mark]
More practice: the rest of this paper · more The Uptake and Transport of Water and Minerals questions · all CAPE Biology Unit 2 past papers