Class 11 · Chemical Coordination and Integration

GI Tract Hormones and Their Functions — NEET Biology

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Endocrine cells present in different parts of the gastro-intestinal tract secrete four major peptide hormones, namely gastrin, secretin, cholecystokinin (CCK) and gastric inhibitory peptide (GIP). Gastrin acts on the gastric glands and stimulates the secretion of hydrochloric acid and pepsinogen. Secretin acts on the exocrine pancreas and stimulates secretion of water and bicarbonate ions. CCK acts on both pancreas and gall bladder and stimulates the secretion of pancreatic enzymes and bile juice, respectively. GIP inhibits gastric secretion and motility. Several other non-endocrine tissues secrete hormones called growth factors. These factors are essential for the normal growth of tissues and their repairing/regeneration.

NCERT Biology · Class 11 · Chapter 19 · Paragraph 36
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Match the following hormones with their respective primary functions: Column I (Hormone) A. Gastrin B. Secretin C. Cholecystokinin D. GIP E. ANF F. Erythropoietin Column II (Primary Function) (i) Stimulates erythropoiesis (ii) Inhibits gastric secretion and motility (iii) Stimulates HCl and pepsinogen secretion (iv) Stimulates water and bicarbonate ion secretion (v) Stimulates pancreatic enzymes and bile juice release (vi) Decreases blood pressure through vasodilation Which of the following options gives the correct match?

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