Hemoglobin is an iron-rich protein in red blood cells that enables the blood to carry oxygen to tissues throughout the body. Low hemoglobin levels often indicate anemia, but high levels can also... There are more than 350 types of abnormal hemoglobin An average adult is said to have close to 1.74 pounds or 790 grams of Hb Our red blood cells are red due to the heme groups in haemoglobin. Heme contains iron imparting a red colour to the molecule Haemoglobin forms an unstable and reversible bond with oxygen. Hemoglobin is a globular heme protein in vertebrate red blood cells and in the plasma of many invertebrates that carries oxygen and carbon dioxide. Helpful. Hemoglobin is a complex iron-containing protein found in erythrocytes (red blood cells) of most vertebrates that plays a vital role in carrying oxygen and carbon dioxide within the blood. It is also the component that makes our blood red.
