Description

Hemoglobin is a complex protein found in red blood cells that facilitates the transport of oxygen from the lungs to tissues and returns carbon dioxide from the tissues to the lungs. Composed of four polypeptide chains, each containing a heme group with iron, hemoglobin binds oxygen in a reversible manner. This protein is crucial for maintaining proper oxygen levels in the body and plays a significant role in regulating blood pH. Abnormalities in hemoglobin can lead to various blood disorders, including anemia and sickle cell disease.

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