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Question : Describe the role of haemoglobin in transport of respiratory gases.

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Solution :(i) TRANSPORT of oxygem - 97% of oxygen CARRIED as oxyhaemoglobin.
`Hb_4 + 4O_2 to Hb4O_8`
(ii) Transport of `CO_2` - 70% of `CO_2` in RBCs
`CO_2 + H_2O to H_2 CO_3 to HCO_3 + H^(+)`
23% of `CO_2` combines with amino group of haemoglobin - carbaminohemoglobin


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