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  4. The correct statement in respect of protein haemoglobin is that it

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Q. The correct statement in respect of protein haemoglobin is that it

ManipalManipal 2007Biomolecules

Solution:

Haemoglobin acts as oxygen carrier in the blood because four $Fe ^{2+}$ ions of each haemoglobin can bind with four molecules of $O _{2}$ and form oxyhaemoglobin.
$4Hb +4O_2 \to \underset{\text{Oxy -haemoglobin}}{Hb_4O_8}$