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GCSE Biology
TOPIC 2: Cells and Controls
3. STEM CELLS
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MERISTEM (plants)
GCSE Biology > TOPIC 2: Cells and Controls > 3. STEM CELLS
5 cards
Cards (19)
What are
stem cells
?
Cells that
differenciate
to become
specialised
cells
Undifferenciated cells are ...
stem cells
Stem cells can divide by mitosis to ...
become
new
cells on the
instruction
they're given which then
differenciate
Where are
stem cells
found in?
Early
human embryos
Early human embryos have the potential to...
to
divide
and
produce
any kind of cell at all
Where do all different types of cell found in a human come from in their development?
Early
embryos
What are
stem cells
important for>
Growth and development of
organisms
Adults have stem cells, but only found in ...
certain
places, like
bone marrow
In adults, what are stem cells used for?
To
replace
damaged cells
, to make
new
skin or
blood
cells
What are the 3 problems with using stem cells?
Rejection
,
tumour development
, and
disease transmission
What are the problems with rejection of the
stem cells
?
Patient's body may recognise the cells as a foreign object and trigger an
immune response
to try get rid of them.
What can a patient do with the
rejection
of
stem cells
?
Take drugs to
suppress
this response, but this makes them more susceptible to disease.
What are the problems with
tumour
development?
If scientists are unable to control the rate of the
cell division
in the patient, a tumour may develop.
What are the problems with disease transmission?
Viruses
live inside cells and if donor
stem cells
are infected, it could be passed on and the
recipient
could get sicker.
See all 19 cards
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