Stem Cells

Stem Cells

1. Embryonic stem cells can turn into ANY type of cell

   • Differentiation is the process by which a cell changes to become specialised for its job
   • Most animal cells, the ability to differentiate is lost at a early stage
   • Lots of plant cells don't ever lose this ability

2. Some cells are undifferentiated

   • They can develop into different types of cells, depending of what instruction they're given
     • These are called 'Stem Cells'

3. Where are Stem cells found?

   • Stem cells are found in early human embryos
     • Embryonics stem cells
       • Embryonic stem cells could replace faulty cell in sick people
   • Adults have stem cells
     • E.g: Bone marrow
     • Ain't very versatile as embryonic stem cells
       • They can't turn into any cell type at all (Certain ones)

4. Arguments against stem cells research

   • Experiments on potential human life is wrong
   • Rights of embryos

5. Research into stem cells

   • Medical researches are exciting about the potential to turn into any kind of cells at all
   • Stem cell maybe able to cure diseases
   • Medicine already use adult stem cells to cure disease
     • E.G: Some blood disease (E.G: Sickle cells anaemia)
       • Can be treated by bone marrow transplants
         • Bone marrow contains stem cells
   • Scientist can extract stem cells from early human embryos and grow them
   • Researchers try to control the differentiation of the stem cells by changing the environment they grow in
     • Needs more research

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