A-LevelBiologyCell structure9700/12 · Oct/Nov 2024 · Q171 Mark

The electron micrograph shows rod-shaped bacteria. The actual length of the bacterium is 2.0 µm and the diameter is 0.5 µm. Assume that the bacterium is cylinder-shaped. What is the surface area to volume ratio of the bacterium?

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A3.0:1.0

B5.0:1.0

C8.0:1.0

D9.0:1.0

✓ Correct answer

D: 9.0:1.0

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Topic: Cell structure, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2024 Paper 1 Variant 2, question 17.

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