Which of the following observations illustrates the concept of energy homeostasis?
A) Despite day-to-day variability in how much food is eaten, most people maintain a fairly constant baseline body weight.
B) Body temperature is always maintained at a constant level.
C) Despite voracious appetites, ob/ob mice display characteristics that are very similar to those of a starving animal.
D) Excess calories are stored in adipose tissue.

Question

Quizplus · Accepted Answer

Energy homeostasis refers to the maintenance of a stable energy balance within an organism. Choice A illustrates this concept by observing that most individuals maintain a relatively constant body weight despite daily fluctuations in food intake. This suggests that the body is able to adjust energy intake and expenditure to maintain energy balance, which is a fundamental characteristic of energy homeostasis. Choices B, C, and D are less directly related to energy homeostasis. While body temperature regulation and energy storage are important components of energy balance, they do not necessarily reflect the ability to maintain energy homeostasis in the face of varying energy inputs and outputs.

Which of the Following Observations Illustrates the Concept of Energy