A-LevelBiologyTransport in plants9700/12 · Oct/Nov 2010 · Q251 Mark
Water passes across leaf tissues by different routes as a result of • differences in water potential • the pull transmitted by cohesive forces between water molecules. The diagram shows three routes by which water can travel. [Figure 25.1 showing a cross section of a leaf with water movement routes 1, 2, 3] Which row correctly identifies why water passes across leaf tissues by the different routes? differences in water potential pull transmitted by cohesive forces
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Aroute 1 routes 2 and 3
Broutes 1 and 3 route 2
Croute 2 routes 1 and 3
Droutes 2 and 3 route 1
✓ Correct answer
D: routes 2 and 3 route 1
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