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1.1 Cell structure

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Question 9

A researcher examines a preserved algal cell using two microscopes.

The cell has a real width of 75 micrometres. On the display of microscope P, the cell has a width of 24 mm.

MicroscopeType of microscopeShortest distance between two points that can be seen as separate
Plight microscope200 nm
Qelectron microscope0.8 nm

Two sub-cellular structures in the cell are 150 nm apart.

Calculate the magnification produced by microscope P. Then explain which microscope the researcher should use to see the two sub-cellular structures as separate.

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Markscheme

1.1 Cell structure Questions

  1. GCSE
  2. /Biology
  3. /1.1 Cell structure

282 exam-style questions on AQA GCSE Biology 1.1 Cell structure, covering 1.1.1 Eukaryotes and prokaryotes, 1.1.2 Animal and plant cells, 1.1.3 Cell specialisation, 1.1.4 Cell differentiation, 1.1.5 Microscopy, and 1.1.6 Culturing microorganisms. Each one has a worked solution and a mark scheme showing where the marks go.

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