A-LevelBiologyTransport in plants9700/12 · Oct/Nov 2016 · Q241 Mark

Which processes are involved in the mass movement of water through xylem vessels? 1 hydrogen bonding between water molecules 2 cohesion between water molecules 3 adhesion between water molecules and lignin

A1, 2 and 3

B1 and 2 only

C1 and 3 only

D2 and 3 only

✓ Correct answer

A: 1, 2 and 3

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Topic: Transport in plants, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2016 Paper 1 Variant 2, question 24.

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