AQA GCSE Biology · 8461
Specification 4.4.2.2 · Paper 1
Revise: Exercise ResponseBreathing rate increases, meaning more breaths are taken each minute.
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GCSE Biology · key term
The number of breaths taken in a given time, usually measured in breaths per minute.
Used by AQA
Specification 4.4.2.2 · Paper 1
Revise: Exercise ResponseBreathing rate increases, meaning more breaths are taken each minute.
Link each response to its purpose: exercise increases the energy demand of muscles, so heart rate, breathing rate and breath volume rise to deliver more oxygenated blood.
Distinguish breathing rate from breath volume: one is the number of breaths per minute; the other is the volume of air moved in each breath.
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