Biology AQA 3.2.4 haemoglobin

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Haemoglobin is a group of chemically similar molecules found in many different organisms

Haemoglobin is a protein with a quaternary structure

Haemoglobin transports oxygen around the body.

it does this by forming oxyhaemoglobin and this can be unloaded at respiring cells/tissues.

At a higher partrial pressure there is a higher affinity for oxygen, so it loads.

Carbon dioxide causes a bohr shift. so the curve shifts to the right and the affinity is lowered.

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