Igcse Model Questions Vol1 2025 Biology Question 20
Practice objective / multiple choice question 20 from the 2025 Igcse Model Questions Vol1 Biology examination.
A person at rest has a heart rate of \(70\;\text{bpm}\) and a stroke volume of \(70\;\text{mL}\). During moderate exercise the heart rate rises to \(110\;\text{bpm}\) and stroke volume increases by \(20\%\). Calculate the factor by which cardiac output (in L·min\(^{-1}\)) increases, giving your answer to two significant figures.
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About This Question
This is Igcse Model Questions Vol1 2025 Biology Question 20. It is one of the objective questions from the 2025 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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