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1.2 Number, size and scale

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Question 19
F

Six bacterial cells, each 2.5 μm2.5\,\mu\mathrm{m}2.5μm long, are arranged in a straight line. There is a gap of 500 nm500\,\mathrm{nm}500nm between each adjacent pair.

What is the total length of the line, including the gaps?

[1]
A

15.5 μm15.5\,\mu\mathrm{m}15.5μm

B

18.0 μm18.0\,\mu\mathrm{m}18.0μm

C

17.5 μm17.5\,\mu\mathrm{m}17.5μm

D

20.0 μm20.0\,\mu\mathrm{m}20.0μm

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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