Identify the wrong statement with reference to transport of oxygen.
Answer: (A) Higher H+ conc. In alveoli favours the formation of oxyhaemoglobin. Answer: (a) Higher H+ conc.
- A.Higher H+ conc. In alveoli favours the formation of oxyhaemoglobin✓
- B.Low pCO2 in alveoli favours the formation of oxyhaemoglobin
- C.Binding of oxygen with haemoglobin is mainly related to partial pressure of O2
- D.Partial pressure of CO2 can interfere with O2 binding with haemoglobin
Correct Answer
(A) Higher H+ conc. In alveoli favours the formation of oxyhaemoglobin
Solution & Explanation
Answer: (a) Higher H+ conc. In alveoli favours the formation of oxyhaemoglobin Solution: The question asks for the WRONG statement. In the alveoli the conditions are high pO2, low pCO2, lesser H+ concentration and lower temperature, and these favour oxyhaemoglobin formation. So a HIGHER H+ concentration would not favour oxyhaemoglobin formation; statement (a) is therefore false. Statements (b), (c) and (d) are all correct (low pCO2 favours formation; binding is mainly related to pO2; pCO2 interferes with binding). NCERT: Ch 14, p.189, line 23 — "In the alveoli, where there is high pO2, low pCO2, lesser H+ concentration"