Breathing and Exchange of Gases

Exchange of Gases – Partial Pressures

2 questions from 2 papers, each with its answer.

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questions
2
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2
years asked, 2017–2026
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of Breathing and Exchange of Gases
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Concepts tested

  • alveolar-po2
  • partial pressures at the alveoli

All Questions

2021 1 question

  1. 1 Breathing and Exchange of Gases Medium
    The partial pressures (in mm Hg) of oxygen ($O_2$) and carbon dioxide ($CO_2$) at alveoli (the site of diffusion) are:

2016 Phase II 1 question

  1. 2 Breathing and Exchange of Gases Easy
    The partial pressure of oxygen in the alveoli of the lungs is: