Question 1
FParkinson's disease is caused by the death of some nerve cells in the brain.
Scientists are developing a treatment for Parkinson's disease using stem cells.
The Figure shows the stages in the treatment.
Figure
a.[1]
Describe what happens to the stem cells when the chemicals are added.
b.[2]
Explain how this treatment could help a person with Parkinson's disease.
c.[4]
Explain two risks of this treatment for the patient.
2.2 Stem cells Questions
46 exam-style questions on Edexcel GCSE Biology 2.2 Stem cells, covering 2.2.1 Function of stem cells and meristems and 2.2.2 Benefits and risks of stem cells. Each one has a worked solution and a mark scheme showing where the marks go.