Question

Cholecystokinin is a

• A. Bile pigment
• B. Enzyme
• C. Lipid
• D. Gastrointestinal hormone

Answer 1

The correct option is D Gastrointestinal hormone

Cholecystokinin is a peptide hormone secreted from the cells of duodenum which is an organ of gastrointestinal tract. It was formerly called as pancreozymin. It stimulates the gall bladder to contract and release bile juice (because gall bladder stores bile juice secreted by liver). It also stimulates the secretion of pancreatic juice into duodenum. The secretion of cholecystokinin controlled by the amount of amino acids and fatty acids in duodenum.

So, the correct answer is 'Gastrointestinal hormone'.