Question

Within the parietal cells of the stomach, CO2 and H2O are combined by ___________ to produce H2CO3, which quickly dissociates into H+ and HCO3-. H+ ions are pumped into the lumen of the stomach via a _____________, while HCO3- is pumped into the blood in exchange for Cl-, which ultimately enters into the lumen of the stomach as well.

Answer 1

Carbonic anhydrase, H+K+ATPase

Step-by-step explanation:

Within the parietal cells of the stomach CO2 and H2O are combined by carbonic anhydrase to produce H2CO3,which quickly dissociates into H+ and HCO3- .H+ ions are pumped into the lumen of stomach via a H+K+ATPase,while HCO3- is pumped into the blood in exchange for Cl- ,which ultimately enters the lumen of the stomach as well.