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2.2 Animal tissues, organs and organ systems

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Question 41

When the skin is cut, cells divide by mitosis to replace the damaged cells. Normally these cells stop dividing once the cut has healed.

One of these dividing cells gains a mutation.

Explain how this mutation could lead to a tumour forming in the skin.

[3]
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2.2 Animal tissues, organs and organ systems Questions

  1. GCSE
  2. /Biology
  3. /2.2 Animal tissues, organs and organ systems

304 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.

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