<prompt> Which of these is not a cause of rightward shift of Oxygen - Hemoglobin dissociation curve?Increased hydrogen ionsDecreased CO2Increased temperatureIncreased BPG  <response>: Bohr effect is closely related to the fact that deoxygenated hemoglobin deoxyhemoglobin binds H more actively than does oxygenated hemoglobin oxyhemoglobin. The pH of blood falls as its CO2 content increases, so that when the PCO2 rises, the curve shifts to the righ A rise in temperature or a fall in pH shifts the curve to the right HbO2 2,3-BPG - - Hb - 2,3-BPG O2 In this equilibrium, an increase in the concentration of 2,3BPG shifts the reaction to the rightRef: Ganongs Review of Medical Physiology Twenty-Third Edition Page No:611 