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HemoglobinGroup of answer choicesbinds oxygen to its heme groups.has constant affinity for oxygen.carries only a small fraction of the oxygen compared to the plasma.is always fully saturated with oxygen.consists of three globin chains.

Respuesta :

Answer:

Hemoglobin binds oxygen to its heme groups.

Explanation:

Hemoglobin is a globular protein formed by 4 polypeptide chains and iron. Every polypeptide chain has a heme group that has iron, this is essential for the transport of oxygen because is where the oxygen binds to be transported to a specific organ.

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