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O-LevelBiologyTransport in Plants5090/11 · Oct/Nov 2013 · Q111 Mark

In which direction do water molecules move in the phloem and in the xylem of a plant stem?

Adown only up only
Bup only down only
Cup only both up and down
Dboth up and down up only

✓ Correct answer

D: both up and down up only

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About this question

Topic
Transport in Plants, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, Oct/Nov 2013 Paper 1 Variant 1, question 11.

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