ACE Health Coach Certification Practice Test

Which hormone suppresses appetite and acts on the pancreas to increase digestive juices?

1. Insulin

2. Peptide YY

3. Cholecystokinin

4. Ghrelin

The correct answer is: Cholecystokinin

The correct choice is cholecystokinin, which is significant for its dual role in regulating appetite and enhancing digestive processes. This hormone is released primarily by the small intestine in response to the presence of fats and proteins in the digestive tract. One of its main functions is to stimulate the gallbladder to release bile, which is crucial for fat digestion. Additionally, cholecystokinin signals the pancreas to increase the production of digestive enzymes, thereby facilitating the breakdown of food and promoting more efficient nutrient absorption. Moreover, cholecystokinin contributes to feelings of satiety, helping to suppress appetite after a meal. This means that once you consume food, its release aids in signaling to the brain that you are satisfied and do not need to eat more, influencing your eating behavior post-consumption. While insulin plays a role in regulating blood sugar levels and can have an impact on appetite, it is not primarily responsible for directly suppressing appetite or stimulating digestive juices. Peptide YY is another hormone involved in appetite suppression, but its primary interactions occur after meals and are not directly related to the stimulation of digestive juices in the same manner as cholecystokinin. Ghrelin, on the other hand, is often referred to