Hemoglobin vs Heme - What's the difference?
hemoglobin | heme |
The iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body; it consists of a protein (globulin''), and ''haem (a porphyrin ring with an atom of iron at its centre).
The component of hemoglobin (and other hemoproteins) 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.
* 2008 , John Greer, John Foerster, George Rodgers, Fixos Paraskevas, Bertil Glader, Daniel Arber, Robert Means Jr, Wintrobe's Clinical Hematology: Volume One: Twelfth Edition , page 141:
As nouns the difference between hemoglobin and heme
is that hemoglobin is the iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body; it consists of a protein (globulin), and haem (a porphyrin ring with an atom of iron at its centre) while heme is the component of hemoglobin (and other hemoproteins) 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.hemoglobin
English
Alternative forms
* haemoglobin *Noun
(en noun)Derived terms
* oxyhaemoglobin, oxyhemoglobinSee also
* (wikipedia "hemoglobin") * globulin * haematinExternal links
* * * ----heme
English
Alternative forms
* haem (British )Noun
- The binding of oxygen to the iron molecule causes the hemoglobin molecule to undergo conformational changes that affect the binding of oxygen to other heme sites.