<prompt> All of the following factors influence hemoglobin dissociation curve, except:Chloride ion concentrationCO2 tensionTemperature2-3 DPG levels  <response>: Ans. is a i.e. Chloride ion concentration Three conditions affect the oxygen-hemoglobin dissociation curve, the pH, the temperature, and the concentration of 2, 3-biophosphoglycerate.CO2 tension PCO2 affects the pH of blood and hence the 02-Hb dissociation curve.Shift of Q2-Hb dissociation curveFactorsShift to RightShift to leftpHtemperature2, 3 DPG cone.PCO2 