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6.5 Uses and dangers of radioactivity

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Question 14

During treatment, high-energy gamma radiation is aimed at a tumour. Some healthy cells are also in the path of the beam.

a.

State what may happen to the DNA in a healthy cell that survives exposure to the radiation.

[1]
b.

Explain how this may eventually result in cancer.

[2]
Markscheme

6.5 Uses and dangers of radioactivity Questions

  1. GCSE
  2. /Physics
  3. /6.5 Uses and dangers of radioactivity

97 exam-style questions on Edexcel GCSE Physics 6.5 Uses and dangers of radioactivity, covering 6.5.1 Uses of radioactivity, 6.5.2 Dangers of ionising radiation and precautions, 6.5.3 Half-life and radiation dangers, 6.5.4 Safety precautions for radiation exposure, and 6.5.5 Contamination and irradiation. Each one has a worked solution and a mark scheme showing where the marks go.

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