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

Body tissue obtains oxygen from oxyhaemoglobin because of its dissociation caused by low O₂and high CO₂concentration. Under a given concentration of oxygen in the blood,dissociation of oxyhaemoglobin will increase if the pH of the blood falls (increase in H⁺ concentration). When the partial pressure of CO₂ rises (blood pH decreases), the dissociation curve of Oxyhaemoglobin at 37 °C shift to the right. Effect of high pCO₂, high temperature and low pH are similar. p50 indicates the oxygen concentration at which 50% haemoglobin of blood is saturated with O₂.