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Haemoglobin (oxygen dissociation curve, Bohr effect, adaptations) | A Level Biology

www.biologywitholivia.co.uk Tailored to the AQA specification, covering all spec points: The haemoglobins are a group of chemically similar molecules found in many different organisms Haemoglobin is a protein with a quaternary structure The role of haemoglobin and red blood cells in the transport of oxygen The loading, transport and unloading of oxygen in relation to the oxyhaemoglobin dissociation curve The cooperative nature of oxygen binding to show that the change in shape of haemoglobin caused by binding of the first oxygens makes the binding of further oxygens easier The effects of carbon dioxide concentration on the dissociation of oxyhaemoglobin (the Bohr effect) Many animals are adapted to their environment by possessing different types of haemoglobin with different oxygen transport properties Also relevant for OCR, Edexcel, CAIE, etc.