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KCET2026BiologyDigestion and Absorption

Gastrin is a hormone secreted by gastrointestinal (GI) tract, which stimulates the secretion of

Options

  1. AHydrochloric acid and pepsinogen
  2. BPancreatic enzymes and bile juice
  3. CWater and bicarbonate ions
  4. DBicarbonate ions and pepsinogen

Correct answer

A. Hydrochloric acid and pepsinogen

Step-by-step solution

Gastrin is a peptide hormone secreted by the G cells in the pyloric region of the stomach. It acts on the gastric glands and stimulates the secretion of gastric juice, which primarily contains hydrochloric acid (HCl) and the proenzyme pepsinogen. Cholecystokinin (CCK) stimulates the secretion of pancreatic enzymes and bile juice. Secretin stimulates the secretion of water and bicarbonate ions from the exocrine pancreas. Answer: Hydrochloric acid and pepsinogen

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