Identify the wrong statement with reference to transport of oxygen.

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Q.
Identify the wrong statement with reference to transport of oxygen. [2020]

1 Binding of oxygen with haemoglobin is mainly related to partial pressure of $O_{2}$ .

2 Partial pressure of ${CO}_{2}$ can interfere with $O_{2}$ binding with haemoglobin.

3 Higher $H^{+}$ conc. in alveoli favours the formation of oxyhaemoglobin.

4 Low ${pCO}_{2}$ in alveoli favours the formation of oxyhaemoglobin.

Ans.
(3)

Binding of oxygen with haemoglobin is related to partial pressure of $O_{2}$ , partial pressure of ${CO}_{2}$ , hydrogen ion concentration and temperature. In the alveoli, high ${pO}_{2}$ , low ${pCO}_{2}$ , lesser $H^{+}$ concentration and lower temperature are factors favourable for the formation of oxyhaemoglobin, whereas in the tissues, low ${pO}_{2}$ , high ${pCO}_{2}$ , high $H^{+}$ concentration and high temperature are favourable for dissociation of oxygen from the oxyhaemoglobin.

Solution

Q.
Identify the wrong statement with reference to transport of oxygen. [2020]

1 Binding of oxygen with haemoglobin is mainly related to partial pressure of $O_{2}$ .

2 Partial pressure of ${CO}_{2}$ can interfere with $O_{2}$ binding with haemoglobin.

3 Higher $H^{+}$ conc. in alveoli favours the formation of oxyhaemoglobin.

4 Low ${pCO}_{2}$ in alveoli favours the formation of oxyhaemoglobin.

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Solution

Q. Identify the wrong statement with reference to transport of oxygen. [2020]

1 Binding of oxygen with haemoglobin is mainly related to partial pressure of O2.

2 Partial pressure of CO2 can interfere with O2 binding with haemoglobin.

3 Higher H+ conc. in alveoli favours the formation of oxyhaemoglobin.

4 Low pCO2 in alveoli favours the formation of oxyhaemoglobin.

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Q.
Identify the wrong statement with reference to transport of oxygen. [2020]

1 Binding of oxygen with haemoglobin is mainly related to partial pressure of $O_{2}$ .

2 Partial pressure of ${CO}_{2}$ can interfere with $O_{2}$ binding with haemoglobin.

3 Higher $H^{+}$ conc. in alveoli favours the formation of oxyhaemoglobin.

4 Low ${pCO}_{2}$ in alveoli favours the formation of oxyhaemoglobin.