haemoglobin

• what type of protein is haemoglobin


  globular protein
• what type of structure is haemoglobin


  Quaternary structure
• describe the structure of haemoglobin


  four folded polypeptide chains joined together to form a Quaternary structure
• what is found at the centre of each polypeptide

  a haem group
• what is meant by a haem group


  this is the binding site for one oxygen molecule
• How many oxygen molecules can hemoglobin carry?


  4
• what intermolecular bonds are found in haemoglobin


  ionic bonds hydrogen bonds , hydrophobic and hydrophilic interactions and disulphide interactions
• what is the reversible reaction between oxygen and haemoglobin


  4O2 +Hb <=> HbO8
• what is the definition of affinity


  the degree to which one molecule is chemically attracted to another molecule
• what is the definition of saturation


  the percentage of oxygen bound to haemoglobin
• what is meant by association


  the uptake of oxygen by haemoglobin into oxyhaemoglobin at the lungs
• what is meant by dissociation


  the release of oxygen at the respiring tissue to form haemoglobin
• what is another name for association


  loading
• what is another name for dissociation


  unloading