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MASS TRANSPORT
OXYHAEMOGLOBIN DISSOCIATION CURVE
COOPERATIVE BINDING
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Created by
Jasmine Singh
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Cards (3)
WHAT IS THE COOPERATIVE NATURE OF O2 BINDING TO HAEMOGLOBIN DUE TO?
haemoglobin changing shape
when the
first oxygen molecule binds
WHAT DOES THE FIRST OXYGEN MOLECULE BINDING TO HAEMOGLOBIN CAUSE?
easier
for
further oxygen molecules
to
bind
HOW DOES COOPERATIVE BINDING WORK?
first molecule
of
oxygen binds
to
haemoglobin
causes
conformational change
of
tertiary structure
easier
for
next two oxygen molecules
to
bind
due to
high affinity
for
oxygen
haemoglobin
is
more saturated
lower chance
of
oxygen
colliding
with
final haem group
harder
for
final oxygen molecule
to
bind
