Neco Model Questions Vol1 2020 Biology Question 7
Practice objective / multiple choice question 7 from the 2020 Neco Model Questions Vol1 Biology examination.
A person at sea level (barometric pressure \(P_b = 760\) mmHg) breathes with a tidal volume of \(500\) mL and a respiratory rate of \(15\) breaths min\(^{-1}\). Anatomical dead space is \(150\) mL. The fraction of inspired oxygen is \(F_{IO_2}=0.21\). Water vapour pressure in the airways is \(P_{H_2O}=47\) mmHg, arterial \(P_{CO_2}=40\) mmHg and the respiratory quotient is \(R=0.8\). (a) Calculate the alveolar ventilation per minute. (b) Using the alveolar gas equation, determine the alveolar partial pressure of oxygen (\(P_{A O_2}\)). Round your answer to the nearest whole mmHg.
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This is Neco Model Questions Vol1 2020 Biology Question 7. It is one of the objective questions from the 2020 Neco Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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