Question

30 what stimulates the secretion of cholecystokinin from the intestinal wall? multiple choice protein in the stomach fat in the stomach carbohydrates in the small intestine protein and fat in the small intestine

Explanation:

Cholecystokinin (CCK) is a hormone that plays a role in digestion. It is secreted by cells in the duodenum (part of the small intestine). The presence of protein and fat in the small intestine (not in the stomach as the first two options suggest, and not just carbohydrates as the third option claims) triggers the release of CCK. CCK then acts on the gallbladder to cause it to contract and release bile (which helps in fat digestion) and on the pancreas to stimulate the release of digestive enzymes.

Answer:

Protein and fat in the small intestine