A-LevelBiologyCell structure9700/12 · May/June 2021 · Q21 Mark
The mean width of mitochondria in an electron micrograph is 6 mm. The magnification of the electron micrograph is ×9600. What is the actual mean width of the mitochondria?
A6 × 10⁻³ mm
B6 × 10⁻⁴ mm
C6 × 10⁻² µm
D6 × 10³ µm
✓ Correct answer
B: 6 × 10⁻⁴ mm
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