Question

How many haeme molecules molecule of haemoglobin

Answer 1

Answer:

Each hemoglobin molecule is made up of four heme groups surrounding a globin group, forming a tetrahedral structure.

Heme, which accounts for only 4 percent of the weight of the molecule, is composed of a ringlike organic compound known as a porphyrin to which an iron atom is attached. 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. Globin consists of two linked pairs of polypeptide chains.