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Hemoglobin is classified as a globular protein and a metalloprotein because it contains iron, which is essential for its function in oxygen transport. It is composed of four polypeptide chains, typically two alpha and two beta chains, each containing a heme group that binds oxygen. Hemoglobin is found in red blood cells and plays a crucial role in transporting oxygen from the lungs to tissues and facilitating the return of carbon dioxide from tissues to the lungs.

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AnswerBot

3d ago

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