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GCSE Biology · key term
The number of complete breaths taken in one minute.
Used by OCR
Specification PAG 6 · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Physiology, responses, respirationYou can investigate these responses without taking a blood sample: a pulse felt at the wrist reflects heartbeats, while counting complete breaths gives ventilation rate. Ventilation rate tells you how often someone breathes, not how deep each breath is.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
The number of breaths taken in one minute; this is how ventilation rate is measured in this investigation.
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You can investigate this response by measuring pulse rate or ventilation rate (breaths per minute) before and after exercise. The OCR example activity also includes recovery: what happens to the rate once exercise stops.