Question detail
What effect does adrenaline have on the heart?
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. Decreases heart rate
- B. Increases heart rate
- C. Has no effect
- D. Regulates blood pressure
Answer
Increases heart rate
Explanation
Adrenaline increases heart rate, which enhances the delivery of oxygen and glucose to the brain and muscles during stressful situations.
Common mistake
Misinterpreting Feedback Diagrams
Students often confuse the roles of thyroxine and adrenaline in feedback diagrams, leading to incorrect interpretations of how these hormones regulate bodily functions.
To fix this, students should focus on understanding the specific functions of each hormone and how they interact in feedback loops. Reviewing the mechanisms of negative feedback for both thyroxine and adrenaline separately can help clarify their distinct roles.
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