Haldane effect
Because deoxyhemoglobin binds more H+ than oxyhemoglobin does and forms carbamino compounds more readily, binding of O2 to hemoglobin reduces its affinity for CO2 (Haldane effect).Ref: Ganong review of medical physiology 23rd edition Page no: 612
Effect of 2,3 -BPG
Dissociation of CO2 on oxygenation
Dissociation of O2 on addition of CO2
Chloride shift
Respiratory system