2019 · Q87
Which one of the following statements regarding haemoglobin is correct?
General KnowledgeBiology
- AHaemoglobin present in RBC can carry only oxygen but not carbon dioxide.
- BHaemoglobin of RBC can carry both oxygen and carbon dioxide.
- CHaemoglobin of RBC can carry only carbon dioxide.
- DHaemoglobin is only used for blood clotting and not for carrying gases.
Explanation
Haemoglobin in red blood cells carries oxygen as oxyhaemoglobin and also transports carbon dioxide, partly as carbaminohaemoglobin and partly via the bicarbonate system. It is not restricted to oxygen, nor is it used for blood clotting. Hence option B is correct.