Question detail
Which of the following best describes the action of glucagon?
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 promotes the storage of glucose as glycogen.
- B. It stimulates the breakdown of glycogen into glucose.
- C. It enhances the uptake of glucose by cells.
- D. It inhibits the secretion of insulin.
Answer
The correct option is It stimulates the breakdown of glycogen into glucose.. This answer is correct because it matches the approved learning objective to explain (HT only) that glucagon causes glycogen to be converted back into glucose in the subtopic Control of blood glucose concentration.
Explanation
The correct option is It stimulates the breakdown of glycogen into glucose.. It stimulates the breakdown of glycogen into glucose. is correct because it directly supports the approved learning objective to explain (HT only) that glucagon causes glycogen to be converted back into glucose. 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 Glucagon's Role
Students often confuse glucagon with insulin, thinking both hormones have the same function in blood glucose regulation.
Remember that glucagon's role is to increase blood glucose levels by converting glycogen back into glucose, while insulin lowers blood glucose levels by facilitating glucose uptake into cells.
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