Waec Model Questions Vol1 2022 Biology Question 13

Practice objective / multiple choice question 13 from the 2022 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2022 Biology Objective / Multiple Choice Medium Difficulty
Question 13 WAEC_MODEL_QUESTIONS_VOL1 • 2022 • BIOLOGY • objective

At sea level the atmospheric pressure is 760 mmHg and the water vapour pressure in the alveoli is 47 mmHg. The fraction of inspired O₂ is 0.21. A subject has an arterial PCO₂ of 40 mmHg and a respiratory quotient (RQ) of 0.8. Using the alveolar gas equation, calculate the alveolar partial pressure of O₂ (PAO₂).

Answer Options

A. ≈ 85 mmHg
Correct Answer B. ≈ 100 mmHg
C. ≈ 115 mmHg
D. ≈ 130 mmHg
Correct Answer
B
Correct Option:
≈ 100 mmHg

About This Question

This is Waec Model Questions Vol1 2022 Biology Question 13. It is a objective / multiple choice question from the 2022 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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