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Home > All Images > 1999 > February > 4 Feb 1999

Images Dated 4th February 1999

Choose from 15 pictures in our Images Dated 4th February 1999 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Iron deficient blood cells & haemoglobin molecule Featured 4 Feb 1999 Image

Iron deficient blood cells & haemoglobin molecule

Iron-deficiency anaemia and haemoglobin. Artwork of irregularly shaped red blood cells (red) in a patient suffering from iron-deficiency anaemia. At centre is a molecule of haemoglobin, the blood pigment that carries oxygen. Haemoglobin consists of chains of amino acids folded into four globin subunits (blue and pink). The haem groups (green) surround the iron atoms (blue) which can bind to oxygen atoms (red spheres). Iron-deficiency anaemia is caused by a deficiency of iron, an essential component of haemoglobin. Many of the cells are irregularly shaped and this reduces their oxygen-carrying capacity. Symptoms include tiredness, dizziness and a pale skin

© JOHN BAVOSI/SCIENCE PHOTO LIBRARY