A-LevelBiologyCell structureFeb/Mar 2024Paper 1 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
The correct answer is C. This question tests the candidate's understanding of cell structure within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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