Zoology - Breathing and Exchange of Gases Question with Solution | TestHub

Oxygen binds with hemoglobin in a reversible manner to form oxyhemoglobin. A maximum of four oxygen molecules is carried by each Hb. The binding of oxygen is related to the partial pressure of${\mathrm{O}}_2$whereas partial pressure of${\mathrm{C}\mathrm{O}}_2$, hydrogen ion concentration, and temperature are factors interfering with its binding. The factors which are favorable for formation of oxyhemoglobin in the alveoli are high${\mathrm{p}\mathrm{O}}_2$, lesser${\mathrm{H}}^{+}$concentration, low${\mathrm{p}\mathrm{C}\mathrm{O}}_{\mathrm{2,}}$and lower temperature. These conditions shift the oxygen dissociation curve to the left. The low${\mathrm{p}\mathrm{O}}_2$, high${\mathrm{p}\mathrm{C}\mathrm{O}}_2$, high${\mathrm{H}}^{+}$concentration, and higher temperature in the tissues are all the conditions leading to dissociation of oxygen from the oxyhemoglobin. These conditions shift the oxygen dissociation curve to the right.