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