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Kristen Erzsebet Koopmans
HL Biology

Comparison between the three different stem cell types; embryonic,
cord blood and adult stem cells
...


Is it easily
obtained?

Can be easily obtained
but the zygote has to die
for that
...
There
is controversy in how to
define a zygote
...


Cell youth

Development
potential

Is it able to divide
continuously?

Greater differentiation
potential than adult
stem cells
...
They can be
categorised as being
pluripotent
...


Adult

Blood found in the
umbilical cord and
placenta after birth
...
However,
limited to the amount
of stem cells in one
baby’s umbilical cord
...


Can be obtained from bone
marrow, skeletal muscle, etc
...

Limited differentiation
potential
...


More likely to have
abnormalities and DNA
mutations due to multiple
causes
...


Do not multiply as
readily
...


Difficult as very few of them
can be found in addition to
only being found deep in the
tissues
...


Smaller differentiation
potential than embryonic
stem cells because they
already come from
specialised tissues and so

Kristen Erzsebet Koopmans
HL Biology

Tissue rejection

Could these stem
cells develop into
cancer cells?
What kind of
treatments use
these stem cells?

High chance of tissue
rejection because they
are not from the same
person
...

Intending to treat the
following diseases in the
near future; Alzheimer’s,
Parkinson’s, diabetes,
heart disease and even
spinal cord injuries
...

Only a small chance of
the cells becoming
cancerous
...


Fully compatible with the
patient because the stem
cells are extracted from the
patient’s tissues
...

Clinical trials have been
started to test if neural stem
cells can treat Parkinson’s
disease and for spinal cord
injury

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