O-LevelBiologyTransport in Plants5090/11 · Oct/Nov 2010 · Q21 Mark

The diagram shows a root hair. [Diagram] Which arrows show the direction in which it is possible for nitrate ions and water molecules to move? [Table]

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A1 only 1 and 2

B1 and 2 1 and 2

C1 and 2 2 only

D2 only 1 only

✓ Correct answer

B: 1 and 2 1 and 2

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Topic: Transport in Plants, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2010 Paper 1 Variant 1, question 2.

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