Which of the following changes would you expect in a diffusion-limited gas exchange scenario (e.g., thickened alveolar membrane)?
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Correct answer: Slower O₂ and CO₂ transfer across the membrane
Thickening of the alveolar–capillary membrane slows diffusion across it, reducing the rate of O₂ uptake and CO₂ elimination, characteristic of diffusion-limited exchange.
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