What explains how the uptake of oxygen is maximised as blood passes through the capillaries of the lungs?
1 )
Each haemoglobin molecule can temporarily bind to four oxygen atoms.
Oxyhaemoglobin formation increases the capacity of red blood cells to transport oxygen.
3 )
The binding of the first oxygen molecule to haemoglobin decreases the molecule’s affinity for binding other oxygen molecules.
4 )
The dissociation of carbon dioxide from carboxyhaemoglobin allows more haemoglobin to be available for oxygen binding.
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