STANDARD Zoology Oxygen-Hemoglobin Dissociation Curve MCQ Question

Left shift of the curve is a sign of hemoglobin increased affinity for oxygen. It is noticed under low temperature as with the increase in temperature metabolic activities increase and thus oxygen demand of tissues also increases and thus dissociation increases. At high pH, fewer H⁺ ions are present thus dissociation of Oxyhemoglobin also decreases. Low PCO₂ than PO₂ favors the affinity of hemoglobin with oxygen.