Which occurs during the secretion of hydrochloric acid by gastric epithelial cells?
A. Bicarbonate ions are secreted into the hepatic portal circulation.
B. There is a decrease in the pH of blood in the hepatic portal circulation.
C. Both H+ and K+ are actively pumped from the epithelial cell cytosol into the lumen of the stomach.
D. Chloride ions are pumped from the cytosol of the gastric epithelial cells into the hepatic portal circulation blood.
E. Vesicles containing H+/K+ -ATP-ase proteins are endocytosed into vesicles within the gastric epithelial cells.
Answer: A
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