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Cardiac output — Edexcel GCSE Combined Science Definition | GradeGen

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Combined Science
Key terms
Cardiac output

GCSE Combined Science · key term

Cardiac output

Definition

The volume of blood pumped out of the left ventricle per unit time, calculated as stroke volume multiplied by heart rate.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Combined Science · 1SC0

Paper 1, Paper 2

Cardiac output describes the volume of blood pumped out of the left ventricle per unit time.
Revise: Respiration

Edexcel Combined Science past papers

Exam tips

1
Keep cardiac-output units consistent. If stroke volume is in cm³ per beat and heart rate is in beats per minute, cardiac output is in cm³/min.

Related key terms

Aerobic respiration
Anaerobic respiration
Cellular respiration
Exothermic reaction
Heart rate

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