Body tissue obtains oxygen from oxyhaemoglobin because of its dissociation caused by low O2 and high CO2 concentration. 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.
Identify the wrong statement with reference to transport of oxygen.
NEET UG 2020 — Zoology Breathing and Exchange of Gases
2020mcqmedium
Identify the wrong statement with reference to transport of oxygen.
Official previous-year question
Held on 30 Apr 2020 · Verified 9 Jul 2026.
Options
- A
Partial pressure of CO2 can interfere with O2 binding with haemoglobin
- B
Higher H+ conc. in alveoli favours the formation of oxyhaemoglobin
- C
Low pCO2 in alveoli favours the formation of oxyhaemoglobin
- D
Binding of oxygen with haemoglobin is mainly related to partial pressure of O2
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