Neco 2024 Biology Question 14
Practice objective / multiple choice question 14 from the 2024 Neco Biology examination.
A rabbit at rest has a heart rate of \(180\) beats per minute and a stroke volume of \(0.5\) mL per beat. During vigorous exercise its heart rate rises to \(300\) beats per minute and stroke volume increases by 20%. In addition, the rabbit's haemoglobin concentration rises by 10%, increasing the oxygen‑carrying capacity of the blood proportionally. If each millilitre of blood at rest carries \(0.20\) mL of O\(_2\), calculate the percentage increase in the rate of oxygen delivery to tissues during exercise compared with rest. Give your answer to one decimal place.
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About This Question
This is Neco 2024 Biology Question 14. It is one of the objective questions from the 2024 Neco Biology examination.
Difficulty level: Medium .
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