O-LevelBiologyCell Biology5090/11 · May/June 2014 · Q31 Mark

Which diagram illustrates the process of active transport?

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.

ADiagram A showing mineral ion moving into a root hair cell against a concentration gradient

BDiagram B showing water moving out of a plant cell

CDiagram C showing water moving into a plant cell

DDiagram D showing oxygen and carbon dioxide exchange in a tissue cell

✓ Correct answer

A: Diagram A showing mineral ion moving into a root hair cell against a concentration gradient

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Topic: Cell Biology, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2014 Paper 1 Variant 1, question 3.

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