EVERYDAY SCIENCE

Detailed explanation-1: -Hemoglobin carries oxygen to the cells. This respiratory pigment of the blood transports oxygen and carbonic anhydride, regulates pH balance, gives rise to bilirubin, and gives the blood its red color.

Detailed explanation-2: -Haemoglobin is the iron-containing pigment that enables red blood cells to carry high concentrations of oxygen to the tissues.

Detailed explanation-3: -More specifically, though, it’s the hemoglobin in red blood cells. Hemoglobin contains iron, which allows it to pick up oxygen from the air we breathe and deliver it everywhere in the body. You can think of hemoglobin as the iron ("heme"), oxygen transport protein, ("globin") found in red blood cells.

Detailed explanation-4: -Red blood cells use a molecule called hemoglobin to transport oxygen around the body. To make hemoglobin, cells require iron to build a component called heme.