HAEMOGLOBIN

• Hemoglobin is the oxygen-carrying protein found in red blood cells.
• The four subunits that make up hemoglobin are called globins, with two alpha (α) chains and two beta (β) chains.
• Each chain has an iron atom bound to it through a heme group.
• What is Haemoglobin

  It is a group of chemically similar molecules which are found in different organisms
• Haemoglobins are proteins with a quaternary structure that has evolved to make it efficient at loading oxygen under one set of conditions, but unloading under a different set of conditions.