Why does the haemoglobin dissociation curve shift to the right when an individual exercises.
The concentration of carbon dioxide in a persons bloodstream rises during exercise. The carbon dioxide molecules interact with substances in the bloodstream to form carbonic acid. This causes the blood to become acidic (have a lower pH). The change in pH disrupts bonds within the haemoglobin molecule causing it to have a decreased affinity for oxygen at a given partial pressure of oxygen and causes the Hb dissociation curve to shift to the left
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