Final answer:
Plasma CCK levels typically increase after consuming a meal high in fats, like cheese, due to CCK's role in digestion and satiety signaling, making the statement that they would decrease false.
Step-by-step explanation:
The statement that plasma CCK levels would be decreased after consuming a large piece of cheese compared to fasting plasma CCK levels is likely false. Cholecystokinin (CCK) is a hormone that is released by the small intestine, especially in response to the ingestion of fat and protein, both of which are abundant in cheese. Consequently, after consuming cheese, the plasma levels of CCK would usually be elevated, not decreased. This increase in CCK will promote digestion and signal the brain to induce satiety.
Additionally, having higher levels of certain nutrients in the blood after a meal, like free fatty acids, could lead to other metabolic adjustments such as the increased secretion of very-low-density lipoprotein (VLDL) by the liver. Therefore, ingesting a meal high in fats, like cheese, would typically result in an increase in plasma CCK levels, which helps regulate appetite and digestion by signaling fullness and aiding in the breakdown of fat.