A-LevelBiologyCell structure9700/12 · Feb/Mar 2024 · Q21 Mark

Which statement explains why it is necessary to use an electron microscope to see the cristae of a mitochondrion?

AThe magnification of the electron microscope is greater than that of the light microscope.

BThe membranes of the cristae are separated by a distance greater than 200 nm.

CThe maximum resolution of a microscope using visible light is too low.

DThe wavelength of an electron beam is longer than the wavelength of visible light.

✓ Correct answer

C: The maximum resolution of a microscope using visible light is too low.

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

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