Question detail
Describe the roles of insulin and glucagon in regulating blood glucose concentration.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Hormonal coordination in humans
Question
Describe the roles of insulin and glucagon in regulating blood glucose concentration.
Answer
Insulin lowers blood glucose levels by facilitating the uptake of glucose into cells and promoting its conversion to glycogen in the liver. Conversely, glucagon raises blood glucose levels by stimulating the conversion of glycogen back into glucose when blood sugar levels are low.
Explanation
This answer is strong because it clearly outlines the opposing functions of insulin and glucagon, demonstrating an understanding of their roles in blood glucose regulation. The question tests the student's ability to explain hormonal interactions in a feedback system.
Common mistake
Misunderstanding Negative Feedback
Students often confuse the roles of insulin and glucagon in the negative feedback cycle, thinking that both hormones lower blood glucose levels.
Clarify that insulin lowers blood glucose levels by facilitating glucose uptake and storage, while glucagon raises blood glucose levels by promoting the conversion of glycogen to glucose in the liver.
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