Question

Iron is stored in the body as

• A. Haemoglobin
• B. Ferritin
• C. Ferredoxin
• D. Myoglobin

Answer 1

Answer: (B)

Ferritin

Haemoglobin is a respiratory pigment present in the RBC of the blood. It is an oligoprotein which has four polypeptide chain, two alpha chain and two beta chain. It has a quaternary structure where each polypeptide has heme group with iron in the center. The polypeptide are linked together by the disulphide groups.

Myoglobin is a oxygen carrier in muscles but it has only one heme group unlike haemoglobin.

Ferredoxins is a iron sulphur protein which helps in oxidation and reduction in metabolic reaction.

Ferritin is a blood cell protein that contains and stores iron. It is a globular protein. The ferritin which is not attached with the iron is known as apoferritin.

So, the correct answer is option B.