Waec Model Questions Vol1 2022 Biology Question 48
Practice objective / multiple choice question 48 from the 2022 Waec Model Questions Vol1 Biology examination.
At rest a person has a stroke volume of 70 mL and a heart rate of 70 beats per minute. Blood carries dissolved oxygen at a concentration of 0.20 mL O₂ per mL of blood. Tissues consume oxygen at a rate of 250 mL O₂ per minute. Assuming all oxygen delivered by the circulation is used, how many minutes (to one decimal place) will the heart need to pump blood to supply the amount of oxygen required for one hour of tissue metabolism?
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About This Question
This is Waec Model Questions Vol1 2022 Biology Question 48. It is one of the objective questions from the 2022 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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