The diagram shows the effect of three different concentrations of carbon dioxide on the oxygen dissociation curve for human haemoglobin.
Which effect does increasing carbon dioxide concentration have on haemoglobin?
1 )
It makes haemoglobin less efficient at taking up oxygen and less efficient at releasing oxygen.
It makes haemoglobin less efficient at taking up oxygen and more efficient at releasing oxygen.
3 )
It makes haemoglobin more efficient at taking up oxygen and less efficient at releasing oxygen.
4 )
It makes haemoglobin more efficient at taking up oxygen and more efficient at releasing oxygen.
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