A-LevelBiologyCell structure9700/12 · Feb/Mar 2025 · Q11 Mark

In an electron micrograph, the length of a mitochondrion is measured as 17.1cm. The magnification of the electron micrograph is ×38000. What is the actual length of the mitochondrion?

A0.22 µm

B0.45 μm

C2.22 µm

D4.50 µm

✓ Correct answer

D: 4.50 µm

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Topic: Cell structure, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Feb/Mar 2025 Paper 1 Variant 2, question 1.

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