Cambridge IGCSE Biology practice

Paper 3 structured question: Hormones

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Paper

Marks

Topic

Hormones

Exam-style question

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Paper 3Theory (Core)1 marks

Adrenaline is a hormone released during the 'fight or flight' response.

Description

Adrenaline causes several changes in the body to prepare it for rapid action.

a
Describe one effect of adrenaline on the breathing rate.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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Paper 3Theory (Core)2 marks

Description

Adrenaline causes an increase in heart rate and pupil size.

a
State two effects of adrenaline on the body.
Your answer
Aim for approximately 2 distinct marking points.
[2]