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Cardiac output — Edexcel GCSE Biology Definition | GradeGen

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Biology
Key terms
Cardiac output

GCSE Biology · key term

Cardiac output

Definition

The volume of blood pumped out of a ventricle in one minute, usually measured in millilitres or litres per minute.

Used by Edexcel

How each exam board covers it

Edexcel GCSE Biology · 1BI0

Specification 8.12 · Paper 2

Cardiac output (CO) is the total volume of blood pumped each minute.
Revise: Cardiac Output

Edexcel Biology past papers

Exam tips

1
Include the correct compound unit: cardiac output is a volume per unit time, such as $\text{mL min}^{-1}$ or $\text{L min}^{-1}$ .

Related key terms

Heart rate
Stroke volume

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−1

2

When rearranging, divide cardiac output by the known quantity; do not reverse the division.