HCO3- is carried by ____ from tissue to the ____. In the lungs, ____ diffuses from plasma into the red blood cell. Causing chloride ions to move out of the red blood cell / ____. To act as buffer // to maintain ____. In red blood cell, HHb / ____ dissociates into ____ and ____. HCO3- combine with ____ forming ____ / H2CO3. The low CO2 concentration in the ____. Drive the breakdown / dissociation of ____ into ____ and ____ in the red blood cell. Which is catalysed by ____. CO2 formed is unloaded from the ____ into the plasma. CO2 concentration in alveolar space is lower than that in plasma. CO2 diffuses from plasma into the ____. Following its concentration gradient

Explain how bicarbonate ion being converted back to carbon dioxide to remove from the blood stream to the lung

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