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  4. What is the iron-free compound of haemoglobin?

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Q. What is the iron-free compound of haemoglobin?

NTA AbhyasNTA Abhyas 2022

Solution:

Haemoglobin is a conjugated protein, which is made up of a protein called globin and a non-protein group haeme. Haeme is an iron (Fe2+)-porphyrin complex. A mammalian haemoglobin molecule is composed of four haeme molecules with four globin molecules.