Iron is important in hemoglobin because it carries oxygen to the cells and carbon dioxide away from the cells.

Name: Iron is important in hemoglobin because it carries oxygen to the cells and carbon dioxide away from the cells.
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Iron is crucial in hemoglobin for binding oxygen and carrying it to the cells, but it is not responsible for carrying carbon dioxide away from the cells; that function is primarily served by other components in the blood, such as bicarbonate ions.

Iron Is Important in Hemoglobin Because It Carries Oxygen to the Cells