A molecule of hemoglobin ____________ a. is shaped like a biconcave disk packed almost entirely with iron b. contains four glycoprotein units studded with oxygen c. consists of four globin proteins, each bound to a molecule of heme d. can carry up to 120 molecules of oxygen
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Step 1: Hemoglobin consists of four globin proteins, each bound to a molecule of heme. Show more…
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