Neco 2018 Biology Question 23
Practice objective / multiple choice question 23 from the 2018 Neco Biology examination.
At sea level atmospheric pressure is \(760\) mmHg, the fraction of inspired oxygen is \(0.21\) and water vapour pressure in the alveoli is \(47\) mmHg. Using the alveolar gas equation \( PAO_2 = F_{IO_2}(P_{atm}-P_{H_2O}) - \frac{PaCO_2}{R}\) with \(PaCO_2 = 40\) mmHg and respiratory quotient \(R = 0.8\), the alveolar \(O_2\) pressure is calculated. If a person ascends to an altitude where barometric pressure falls to \(560\) mmHg and their \(PaCO_2\) decreases to \(30\) mmHg due to hyperventilation, what is the new alveolar \(O_2\) pressure (in mmHg, one decimal place)?
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About This Question
This is Neco 2018 Biology Question 23. It is one of the objective questions from the 2018 Neco Biology examination.
Difficulty level: Medium .
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