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PAPER 1
Topic 1-Cell Biology
Cell Differentiation and Specialisation
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Stem cells
AQA GCSE Biology > PAPER 1 > Topic 1-Cell Biology > Cell Differentiation and Specialisation
10 cards
Cards (21)
Cells that differentiate in mature animals are mainly used for
repairing
and
replacing
cells
undifferentiated cells are called
stem cells
Sperm cells are specialised for
reproduction
sperm cells have a
long
tail and streamlined
head
to help it swim. it contains a lot of
mitochondria
to provide the
energy
needed.
Nerve cells are specialised for rapid
signalling
Nerve cells carry
electrical
signals. These cells are
long
and have
branched
connections at their ends.
muscle cells are specialised for
contraction
Muscle cells are
long
and contain lots of
mitochondria
to generate the
energy
needed for
contraction
root hair cells are specialised for absorbing
water
and
minerals
Phloem and xylem cells are specialised for
transporting
substances
Xylem cells are
hollow
in the centre and phloem cells have very
few
subcellular structures so that stuff can
flow
through them
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