A-LevelBiologyCell structure9700/12 · May/June 2023 · Q11 Mark

A graticule and a micrometer scale can be used to measure the size of biological structures that are viewed with a microscope. [Figure 1.1] Which row shows the correct locations for the placement of a graticule and a micrometer scale on the microscope shown?

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Agraticule: 1, micrometer scale: 2

Bgraticule: 1, micrometer scale: 3

Cgraticule: 2, micrometer scale: 3

Dgraticule: 3, micrometer scale: 1

✓ Correct answer

B: graticule: 1, micrometer scale: 3

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Topic: Cell structure, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, May/June 2023 Paper 1 Variant 2, question 1.

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