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changed "blood" to "hemoglobin" // cleaning up language
'''Hemoglobin''' is an iron-rich [[protein]] in [[blood]] that carries oxygen to the [[cell|cells]] of the body. The iron component in blood gives it a red color when carrying oxygen.
'''Hemoglobin''' is the iron-containing [[protein]] in red [[blood]] cells that carries oxygen to the [[cell|cells]] of the body. The iron component in hemoglobin gives it a red color when carrying oxygen.
[[Category:Biology]]
[[Category:Biology]]
[[Category:Anatomy]]
[[Category:Anatomy]]