- Rhymes: -iːm
- heme (US)
- The component of haemoglobin responsible for binding oxygen, consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules; one molecule binds one molecule of oxygen.
- 2010, Pierre Cornelis and Simon Andrews (editors), Iron Uptake and Homeostasis in Microorganisms, page 17:
component of hemoglobin
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