Question

What is required to formation of haemoglobin in red blood cells?

Answer 1

Answer:

Hemoglobin develops in cells in the bone marrow that become red blood cells. ... It is the iron atom that binds oxygen as the blood travels between the lungs and the tissues. There are four iron atoms in each molecule of hemoglobin, which accordingly can bind four atoms of oxygen.

Answer 2

Iron is required for formation of hemoglobin