Question

Match each item in Column I with one item in Column II and choose your answer from the codes given?

Column I	Column II
I. Gastrin	$1$. Gall bladder contraction
II. CCK	$2$. Increased HCl secretion
III. Secretin	$3$. Bicarbonate secretion from the pancreas
IV. GIP	$4$. Insulin secretion.

• A. I-$1$, II-$2$, III-$3$, IV-$4$
• B. I-$2$, II-$1$, III-$4$, IV-$3$
• C. I-$2$, II-$1$, III-$3$, IV-$4$
• D. I-$1$, II-$2$, III-$4$, IV-$3$

Answer 1

The correct option is C I-$2$, II-$1$, III-$3$, IV-$4$

• Secretin stimulates the secretion of a bicarbonate-rich pancreatic fluid. Secretin enters the bloodstream or intestinal lumen and stimulates bicarbonate secretion (by interacting with pancreatic ductal cells), which neutralizes the pH of the gastric chyme upon entering the small intestine.

• GIP stimulates insulin secretion in response to a meal.
• Gastrin is a peptide hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach and aids in gastric motility.
• Fatty acids in the lumen of the duodenum stimulate endocrine cells to release the hormone cholecystokinin (CCK). CCK stimulates contractions in the smooth muscle of the gallbladder.
  

So, the correct answer is 'I-2, II-1, III-3, IV-4'.