Oxygen Transport

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Oxygen Transport

Oxygen is transported by haemoglobin, made up of 4 polypeptide chains bound to 4 haem groups

Each haem group can carry one oxygen molecule making oxyhaemoglobin

Haemoglobin has a high affinity for oxygen - wants to bond with it

The first oxygen molecule is hard to combine with the haemoglobin, but after that is bonded the affinity increases and molecules 2 and 3 are easier. The fourth oxygen molecule is also hard to…


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