Question detail
What is the role of insulin in the regulation of blood glucose concentration?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Hormonal coordination in humans
Question
- A. It increases blood glucose levels.
- B. It causes glucose to move from the blood into cells.
- C. It stimulates the liver to produce more glucose.
- D. It inhibits the secretion of glucagon.
Answer
The correct option is It causes glucose to move from the blood into cells.. This answer is correct because it matches the approved learning objective to explain (HT only) how insulin and glucagon interact in a negative feedback cycle to control blood glucose concentration in the subtopic Control of blood glucose concentration.
Explanation
The correct option is It causes glucose to move from the blood into cells.. It causes glucose to move from the blood into cells. is correct because it directly supports the approved learning objective to explain (HT only) how insulin and glucagon interact in a negative feedback cycle to control blood glucose concentration. This belongs to the subtopic Control of blood glucose concentration within Hormonal coordination in humans, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Control of blood glucose concentration.
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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