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.

Carbonic anhydrase, H+K+ATPase

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.

Explanation: ANSWER:

\int\limits^a_b {x} \, dx \lim_{n \to \infty} a_n \neq \sqrt{x} x^{2} \geq \left \{ {{y=2} \atop {x=2}} \right. \leq \\ \alpha \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] \lim_{n \to \infty} a_n \\