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1.2 Number, size and scale

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Question 7
F

The lengths of four bacterial cells are 0.002 mm, 3 μm3\,\mu\mathrm{m}3μm, 4000 nm4000\,\mathrm{nm}4000nm and 0.003 mm.

What is their mean length in micrometres?

[1]
A

2.5 μm2.5\,\mu\mathrm{m}2.5μm

B

4.0 μm4.0\,\mu\mathrm{m}4.0μm

C

12.0 μm12.0\,\mu\mathrm{m}12.0μm

D

3.0 μm3.0\,\mu\mathrm{m}3.0μm

Markscheme

1.2 Number, size and scale Questions

  1. GCSE
  2. /Biology
  3. /1.2 Number, size and scale

48 exam-style questions on Edexcel GCSE Biology 1.2 Number, size and scale, covering 1.2.1 Number, size and scale with estimations and 1.2.2 Quantitative units in relation to cells. Each one has a worked solution and a mark scheme showing where the marks go.

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