The parietal cells that line the stomach secrete hydrogen ions into the stomach against a concentration gradient.Based on that knowledge,which of the following transport processes is most likely involved in hydrogen ion secretion?

Question

Quizplus · Accepted Answer

According to the statement, the parietal cells secrete hydrogen ions against a concentration gradient. This means that the process requires energy expenditure to move the ions from an area of low concentration to an area of high concentration. Active transport is the only transport process that requires energy and moves molecules against the concentration gradient. Therefore, active transport is the most likely process involved in hydrogen ion secretion.

The Parietal Cells That Line the Stomach Secrete Hydrogen Ions