Which is TRUE regarding the secretion of HCl in the stomach?
A. H+ is actively transported into the gastric lumen by ATPase pumps in the mucosal membrane.
B. H+ is actively cotransported into the lumen by secondary active transporters coupled to K+.
C. The pH of the blood leaving the area of the parietal cells is lower than the normal ECF value of 7.4.
D. H+ diffuses passively from mucosal epithelial cells into the lumen of the stomach, following Cl-.
E. Cl- and HCO3- are exchanged across the luminal membrane of epithelial cells via a passive transport protein.
A
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What will be an ideal response?