As part of your biological psychology class,you conduct an experiment in which a rat's brain is continuously infused with a hormone called ghrelin.Based on the function of ghrelin,you can predict that the rat will
A) display negative energy balance and lose weight gradually.
B) develop a huge appetite and gain weight.
C) lose its appetite and stop eating altogether.
D) display a significant decrease in its body mass index (BMI).

Question

Quizplus · Accepted Answer

Ghrelin is a hormone that increases appetite and promotes food intake. Therefore, continuously infusing a rat's brain with ghrelin would lead to the rat developing a huge appetite and gaining weight. Choice A is incorrect because negative energy balance and weight loss would be expected if ghrelin levels were decreased, not increased. Choice C is incorrect because ghrelin stimulates appetite, so it is unlikely that the rat would lose its appetite and stop eating altogether. Choice D is incorrect because BMI is a calculation that takes into account both weight and height, and it cannot be inferred from the information given about ghrelin infusion.

As Part of Your Biological Psychology Class,you Conduct an Experiment