試題詳解

53. Which of the following statements concerning appetite-regulating hormones is NOT correct?
(A) Leptin suppresses appetite as its level increase.
(B) The hormone PYY, secreted by the small intestine after meals, acts as an appetite suppressant.
(C) Insulin can suppress appetite by acting on the brain.
(D) Ghrelin is one of the signals that triggers feelings of hunger as mealtimes approach.
(E) Amino acids or fatty acid in the duodenum trigger the release of Cholecystokinin (CCK), an appetite suppressant.