Exam-style question
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What is the primary mechanism by which high-energy X-rays treat tumours?.
- A.By inducing ionization in cancer cells
- B.By increasing the temperature of the tumour
- C.By enhancing blood flow to the tumour
- D.By delivering nutrients to the tumour
Model answer
What a good answer should say
- By inducing ionization in cancer cells
Explanation
Why this works
High-energy X-rays treat tumours primarily by inducing ionization in cancer cells, which damages their DNA and inhibits their ability to reproduce, ultimately leading to cell death.
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