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  4. How many molecules of oxygen can bind to a molecule of haemoglobin?

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Q. How many molecules of oxygen can bind to a molecule of haemoglobin?

Haryana PMTHaryana PMT 2009

Solution:

Each haemoglobin molecule has four iron atoms, each of which can combine with a molecule of oxygen through coordinate bond...... $O=O$. Hence, total four molecules of oxygen can bind (or combine) with one molecule of haemoglobin.