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Byju's Answer
Standard XII
Biology
Oxygen Dissociation Curve
Which of the ...
Question

Which of the following binds irreversibly with haemoglobin?

A
Carbon dioxide
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B
Oxygen
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C
Carbon monoxide
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D
Nitrogen
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Solution

The correct option is C Carbon monoxide
Carbon monoxide has 210 times greater affinity for haemoglobin than Oxygen, as it irreversibly binds with hemoglobin.
So, the correct answer is 'Carbon monoxide'

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