Which statement is true for the Bohr effect?
1 )
As the partial pressure of carbon dioxide increases the dissociation curve becomes S- shaped (sigmoid).
2 )
At higher partial pressures of carbon dioxide and equal partial pressures of oxygen, the percentage saturation of haemoglobin with oxygen will be higher.
3 )
The carbon dioxide in the air prevents haemoglobin becoming fully saturated with oxygen during gas exchange in the lungs.
The release of oxygen from haemoglobin is more likely at higher partial pressures of carbon dioxide.
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