O-LevelBiologyRespiration5090/11 · Oct/Nov 2014 · Q171 Mark

The diagram shows how some apparatus is set up to investigate respiration in germinating seeds. The coloured oil drop moves along the capillary tube. What causes the movement of the coloured oil drop?

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Acarbon dioxide released

Bheat released

Coxygen used

Dwater used

✓ Correct answer

C: oxygen used

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Topic: Respiration, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2014 Paper 1 Variant 1, question 17.

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