O-LevelBiologyPlant Nutrition5090/11 · Oct/Nov 2015 · Q31 Mark

The diagram shows the concentration of magnesium ions in a healthy root hair cell of a plant and in the soil water surrounding it. For the plant to remain healthy, how will the magnesium ions move?

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.

Ainto the cell by active transport

Binto the cell by diffusion

Cout of the cell by active transport

Dout of the cell by diffusion

✓ Correct answer

A: into the cell by active transport

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Topic: Plant Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2015 Paper 1 Variant 1, question 3.

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