CAIE IGCSE Biology 14.3.3 Adrenaline As the Hormone Secreted Questions
Practise identifying adrenaline as the fight-or-flight hormone and predicting its effects on breathing, heart rate and pupils.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- identify adrenaline as the hormone released during fight-or-flight situations
- state that adrenaline increases breathing rate and heart rate
- state that adrenaline increases pupil diameter rather than causing constriction
CAIE IGCSE Biology 14.3.3 Adrenaline As the Hormone Secreted Questions question 1
[Maximum number: 1]
Which hormone causes an increase in breathing rate, an increase in heart rate and the widening of pupils?
A
insulin
B
adrenaline
C
oestrogen
D
testosterone
B
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