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The Bohr Effect

In 1903 a scientist by the name of Christian Bohr made an important discovery that unravelled some of the mysteries around breathing. He discovered that the level of carbon dioxide in the blood is important in allowing oxygen to be released by the haemoglobin. At higher levels of CO2 haemoglobin releases O2 more easily. This has been named the Bohr Effect. It is also known by medical doctors and scientists as the oxy-haemoglobin dissociation curve. When the level of CO2 in the blood is lower, oxygen bonds more tightly to haemoglobin, causing the symptoms of lowered oxygen in body tissues.