Derek,a neuropsychology graduate student,works in a behavioral eating research lab.Derek suggests to the lead investigator that injecting people with leptin will help them lose weight.His idea is quickly shot down by a classmate,who states,"Not so fast,Derek;____."
A)as leptin increases,glucose absorption decreases
B)high levels of leptin inhibit insulin synthesis
C)leptin is metabolized by fat cells quicker than it is produced
D)obese humans already have high levels of circulating leptin

Question

Quizplus · Accepted Answer

Obese individuals already have high levels of circulating leptin, so additional injections of leptin are unlikely to have significant weight loss effects. In fact, resistance to leptin is often a contributing factor in obesity. Options A and B are false statements, and option C does not necessarily speak to the efficacy of injecting leptin for weight loss.

Derek,a Neuropsychology Graduate Student,works in a Behavioral Eating Research Lab