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Question
Secretion of which of the following substances is inhibited by low pH?
Secretion of which of the following substances is inhibited by low pH?
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Solution
The correct option is B Gastrin
Gastrin's principal physiological action is to increase H+ secretion. H+ secretion decreases the pH of the stomach contents. The decreased pH, in turn, inhibits further secretion of gastrin—a classic example of negative feedback.
Secretin is a gastrointestinal peptide hormone that regulates secretions in the stomach, pancreas, and liver.
Cholecystokinin plays a key role in helping digestion within the small intestine.
Gastric inhibitory polypeptide (GIP), or gastric inhibitory peptide, is an inhibiting hormone, its main role is to stimulate insulin secretion.
Gastrin's principal physiological action is to increase H+ secretion. H+ secretion decreases the pH of the stomach contents. The decreased pH, in turn, inhibits further secretion of gastrin—a classic example of negative feedback.
Secretin is a gastrointestinal peptide hormone that regulates secretions in the stomach, pancreas, and liver.
Cholecystokinin plays a key role in helping digestion within the small intestine.
Gastric inhibitory polypeptide (GIP), or gastric inhibitory peptide, is an inhibiting hormone, its main role is to stimulate insulin secretion.
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