Which of the Following is Not True of CCK (Cholecystokinin)

Question

Which of the following is not true of CCK (cholecystokinin)?
A) Stimulates the gallbladder to secrete bile
B) Secreted by the walls of the duodenum in response to the presence of fat
C) Classified as a hormone
D) Classified as a lipase

Accepted Answer

CCK is classified as a hormone and is secreted by the walls of the duodenum in response to the presence of fat. It stimulates the gallbladder to secrete bile, but it is not classified as a lipase. Lipases are enzymes that break down fats, while CCK is a hormone that helps regulate the digestion and absorption of fats.