Which transport mechanism is unique to parietal cells for the transport of HCl?

Question

Quizplus · Accepted Answer

The unique transport mechanism for the transport of HCl in parietal cells is the K⁺/H⁺-exchanging ATPase. This pump, also known as the proton pump, works by exchanging K+ in the cell for H+ in the secretory canaliculi, thereby creating a highly acidic environment necessary for the digestion of food. None of the other transport mechanisms listed are unique to parietal cells or are involved in the transport of HCl specifically.

Which Transport Mechanism Is Unique to Parietal Cells for the Transport