Gce Model Questions Vol1 2021 Biology Question 42
Practice objective / multiple choice question 42 from the 2021 Gce Model Questions Vol1 Biology examination.
The labelled diagram of the human respiratory system shows that each alveolus can be approximated as a sphere of diameter 0.2 mm. If one lung contains about 480 million alveoli, estimate the total internal surface area available for gas exchange in that lung. Give your answer in square metres, rounded to the nearest whole number.
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About This Question
This is Gce Model Questions Vol1 2021 Biology Question 42. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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