IMMUNOLOGY

Detailed explanation-1: -As its name suggests, hemoglobin is composed of “heme” groups (iron-containing rings) and “globins” (proteins). In fact, hemoglobin is composed of four globin proteins-two alpha chains and two beta chains-each with a heme group.

Detailed explanation-2: -Iron is an essential element for blood production. About 70 percent of your body’s iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin. Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues.

Detailed explanation-3: -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.

Detailed explanation-4: -A type of blood cell that is made in the bone marrow and found in the blood. Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body.

Detailed explanation-5: -The cytoplasm of a red blood cell is rich in hemoglobin, an iron-containing biomolecule that can bind oxygen and is responsible for the red color of the cells and the blood.