[Campbell Biology P.966] A person feels satiated after a large meal. According to Figure 41.... | Practice Question

A person feels satiated after a large meal. According to Figure 41.24 and its descriptions, which hormone is LEAST likely to be playing a significant role in promoting this feeling of fullness?

  • A: Ghrelin
  • B: Insulin
  • C: Leptin
  • D: PYY

Explanation

The text states that ghrelin is an "appetite stimulant." The other three Insulin, Leptin, PYY are described as "appetite suppressants" or acting to suppress appetite, thus promoting a feeling of fullness. Therefore, ghrelin is least likely to promote fullness; instead, it promotes hunger.