We experience hunger when the level of
A) ghrelin in our blood is low.
B) leptin in our blood is low.
C) glucose in our blood is low.
D) PYY in our blood is high.

Question

Quizplus · Accepted Answer

Hunger is experienced when glucose levels in the blood are low, signaling to the brain that the body needs food to replenish its energy stores. Ghrelin is a hormone that stimulates hunger, but its levels increase when the stomach is empty, not when glucose levels are low. Leptin is a hormone that signals to the brain when the body has enough energy stores and should stop eating, so low levels of leptin would not cause hunger. PYY is a hormone that is released after eating to signal fullness and decrease appetite, so high levels of PYY would not cause hunger.

We Experience Hunger When the Level of