As blood passes through the capillaries of the lungs the uptake of oxygen is maximised.
Which of the statements below explain how this happens?
The dissociation of carbon dioxide from carboxyhaemoglobin allows more haemoglobin to be available for oxygen binding.
The binding of the first oxygen molecule to haemoglobin decreases the affinity of the molecule for binding other oxygen molecules.
Oxyhaemoglobin formation increases the capacity of red blood cells to transport oxygen.
Each haemoglobin molecule can temporarily bind to four oxygen atoms.
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