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O-LevelBiologyPlant Nutrition5090/12 · May/June 2023 · Q81 Mark

Which row shows why plants need magnesium ions and nitrate ions?

Amagnesium ions: to make fatty acids, nitrate ions: to make proteins
Bmagnesium ions: to make amino acids, nitrate ions: to make chlorophyll
Cmagnesium ions: to make chlorophyll, nitrate ions: to make cellulose
Dmagnesium ions: to make chlorophyll, nitrate ions: to make amino acids

✓ Correct answer

D: magnesium ions: to make chlorophyll, nitrate ions: to make amino acids

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About this question

Topic
Plant Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, May/June 2023 Paper 1 Variant 2, question 8.

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