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Biology - Topic 3
Mass Transport
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Created by
Billie Benson
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Cards (7)
Hemoglobin is a
proteins
with a
quaternary
structure (more than
one
polypeptide chain)
the role of
haemoglobin
is to transport
oxygen
around the body by
loading
, transporting and
unloading
what is haemoglobin made of ?
4
polypeptide
chains
each with a
iron
containing haem group
what is
cooperative
binding?
when the first
oxygen
molecule binds causing it to change
shape
slightly allowing oxygen to bind more
easily
now
haemoglobin has an
affinity
for oxygen
Oxygen + haemoglobin =
Oxyhaemoglobin
why is haemoglobin useful?
can
change
its affinity for oxygen under different conditions
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