Zusammenfassung der Ressource
Stem Cells
- 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
- Some cells are undifferentiated
- They can develop into different types of cells,
depending of what instruction they're given
- These are called 'Stem Cells'
- 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)
- Arguments against stem cells research
- Experiments on potential
human life is wrong
- Rights of embryos
- 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