( A ) Binding of oxygen with haemoglobin is primarily related to partial pressure of O2
( B ) O2 can bind with haemoglobin in a reversible manner to form oxyhaemoglobin.
( C ) Each haemoglobin molecule can carry a maximum of four atoms of Oxygen.
( D ) Partial pressure of CO2, hydrogen ion concentration and temperature are the other factors which can interfere with this binding.
