CAIE IGCSE Biology 14.3.6 Adrenaline & Metabolic Activity
Practise explaining how adrenaline raises blood glucose concentration and heart rate to support rapid activity.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- state that adrenaline increases blood glucose concentration and heart rate
- link rising blood glucose to conversion of stored glycogen into glucose
- explain that extra glucose supports respiration and energy release for muscle contraction
14.3.6—Role of adrenaline in the control question 1
[Maximum number: 3]
Adrenaline also affects blood glucose concentration.
Suggest how this is an advantage for the "fight or flight" response.
any three from:
1 (adrenaline) causes the, breakdown / conversion, of, glycogen / stored carbohydrate ;
2 increasing (blood) glucose concentration ;
3 glucose used in respiration releasing energy ;
4 energy used for muscle contraction ;
5 AVP ;
e.g. increased glucose uptake by cells
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