In response to fasting, undereating, or dieting, fat cells shrink and weight loss occurs. Which internal change occurs to promote eating behavior, weight gain, and restore a person's typical body weight?
A)increased cholecystokinin (CCK) activity in the brain
B)increased basal metabolic rate (BMR)
C)increased classical conditioning
D)increased neuropeptide Y (NPY) activity in the brain

Question

Quizplus · Accepted Answer

Increased neuropeptide Y (NPY) activity in the brain promotes eating behavior, weight gain, and helps to restore a person's typical body weight. NPY is a neurotransmitter synthesized and released by neurons in the hypothalamus, and it acts on the hunger centers of the brain to increase appetite and food intake. When fat cells shrink, NPY activity increases to encourage eating and weight gain.

In Response to Fasting, Undereating, or Dieting, Fat Cells Shrink