The Molecular Biology Notebook Online
Haemoglobin
Or hemoglobin. A protein, made up of four subunits, four heme groups. Haemoglobin is present in red cells or erythrocytes and carries oxygen from lungs to cells, and some of the carbon dioxide from cells to lungs.
View Dr Chromo's lecture on 'Proteins', 'Sickle cell disease' and 'Blood cells'.
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haemoglobin on Wikipedia