Haemoglobin present in human blood binds to oxygen in which oxidation state?

F e^{2 +}

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

F e^{3 +}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

F e^{4 +}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

F e^{+}

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D $F e^{2 +}$
Haemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells. The iron ion, which is the site of oxygen binding, coordinates with the four nitrogen atoms in the center of the ring.
The iron ion may be either in the Fe2+ or in the Fe3+ state, but ferrihemoglobin (methemoglobin) (Fe3+) cannot bind oxygen. Iron must exist in the +2 oxidation state to bind oxygen.

So the answer is 'Fe2+'.

Suggest Corrections

Similar questions

What is Oxidation state of Fe inside and outside in Fe4[Fe(CN)6]

F e | F e^{2 +} | | F e^{3 +} | F e

F e | F e^{2 +} | | F e^{3 +}, F e^{2 +} | P t

F e | F e^{3 +} | | F e^{3 +}, F e^{2 +} | P t

F e

F e^{2 +}

F e^{3 +}

F e

F e^{2 +}

F e^{3 +}

E_{1}^{o}, E_{2}^{o}

E_{3}^{o}

F e | F e^{2 +}, F e^{2 +} | F e^{3 +}

F e | F e^{3 +}

E_{3}^{o} = \frac{E_{2}^{o} + 2 E_{1}^{o}}{n}

Join BYJU'S Learning Program