O-LevelBiologyPlant Nutrition5090/11 · May/June 2015 · Q51 Mark

The diagram shows a plant cell. [Figure 5.1] Compared with the rest of the cell, which row describes the concentrations of oxygen and magnesium inside structure P during the daytime?

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Aoxygen: high, magnesium: high

Boxygen: high, magnesium: low

Coxygen: low, magnesium: high

Doxygen: low, magnesium: low

✓ Correct answer

A: oxygen: high, magnesium: high

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Topic: Plant Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2015 Paper 1 Variant 1, question 5.

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