Hemoglobin (in orange) is a protein in the blood that carries oxygen from the respiratory organs to the rest of the body

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Hemoglobin (in orange) is a protein in the blood that carries oxygen from the respiratory organs to the rest of the body. There it releases the oxygen to permit aerobic respiration. The iron-containing heme groups (in green) attached to the hemoglobin aids in binding the oxygen.

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Photo credit: © Science Lab / Alamy / Afripics
License: Licensed
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