Haemoglobin. Computer model of haemoglobin, the principal protein component of red blood cells. Each molecule is made up of four subunits (coloured ri

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Haemoglobin. Computer model of haemoglobin, the principal protein component of red blood cells. Each molecule is made up of four subunits (coloured ribbon structures) called alpha and beta subunits. Within each subunit is an oxygen binding site, or haem group (turquoise). Each haem group contains one atom of iron (green). Haemoglobin transports oxygen around the body by binding one oxygen molecule to each haem group. This means that each molecule of haemoglobin can transport four molecules of oxygen.

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Size: 4224px × 4224px
Photo credit: © KALLISTA IMAGES/CUSTOM MEDICAL STOCK PHOTO/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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