AQA GCSE Biology · 8461
Specification 4.4.2.2 · Paper 1
Revise: Exercise ResponseHeart rate increases, so the heart pumps blood around the body more frequently. This helps deliver more oxygenated blood to the working muscles.
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GCSE Biology · key term
The number of heartbeats in a given time, usually measured in beats per minute (bpm).
Used by AQA, Edexcel and OCR
Specification 4.4.2.2 · Paper 1
Revise: Exercise ResponseHeart rate increases, so the heart pumps blood around the body more frequently. This helps deliver more oxygenated blood to the working muscles.
Specification 8.12 · Paper 2
The number of times the heart beats in one minute, usually measured in beats per minute (bpm).
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.
For heart rate measured over part of a minute, scale the pulse count to a full 60 seconds.
Give units for measured quantities such as heart rate. Magnification is a ratio and has no unit.
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Heart rate (HR) is the number of beats each minute.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
The number of heartbeats in a given time, usually expressed in beats per minute.
Revise: Scientific QuantitiesRecording heart rate in beats per minute allows results from different times or people to be compared, and allows a prediction about a change to be tested against data.