Igcse Model Questions Vol1 2021 Biology Question 24
Practice objective / multiple choice question 24 from the 2021 Igcse Model Questions Vol1 Biology examination.
At sea level the barometric pressure is 760 mmHg. Inspired air contains 21 % oxygen ((F_{O2}=0.21)). Water vapour pressure in the alveoli is 47 mmHg. The arterial partial pressure of carbon dioxide is 40 mmHg and the respiratory quotient (R) is 0.8. Using the alveolar gas equation \(P_{A O2}= (P_B-P_{H2O})F_{O2} - \frac{P_{a CO2}}{R}\), calculate the alveolar partial pressure of oxygen (\(P_{A O2}\)) in mmHg (give your answer to one decimal place).
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This is Igcse Model Questions Vol1 2021 Biology Question 24. It is one of the objective questions from the 2021 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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