Which of the following examples represent conditions regulated by homeostasis in the body?
1. Blood glucose concentration
2. Body temperature
3. Water levels
4. Body weight
A) 1 and 4
B) 4 only
C) 1, 2 and 3
D) 1 and 2
E) 1 only
IMAT 2023 · Question 15
Q15 - Homeostasis
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The correct answer is C) 1, 2 and 3.
Homeostasis keeps a variable near a set point using feedback. Blood glucose (insulin/glucagon), body temperature (hypothalamus, sweating, shivering) and water balance (ADH and the kidneys) all work like that.
Body weight doesn't: it changes over months with diet and activity, and there is no feedback loop holding it at a fixed value. So the answer is 1, 2 and 3.
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