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2.2 Stem cells

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Question 32
H

A stem-cell treatment improves tissue function. Scientists also find a growing mass of undifferentiated cells at the transplant site.

Which interpretation best fits both observations?

[1]
A

Some cells replace tissue, while the mass proves that no risk remains.

B

All cells replace tissue, while the mass proves that rejection has stopped.

C

Some cells replace tissue, while other cells may divide uncontrollably.

D

All cells remain unspecialised, while the tissue repairs without new cells.

Markscheme

2.2 Stem cells Questions

  1. GCSE
  2. /Biology
  3. /2.2 Stem cells

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.

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