Question

explain how the thin walls help the alveoli to do a good job?​

Answer 1

Answer:

The thin lining of the alveoli is very thin so that gases can quickly diffuse through it. Thin walls - alveolar walls are one cell thick providing gases with a short diffusion distance. ... A large diffusion gradient - breathing ensures that the oxygen concentration in the alveoli is higher than in the capillaries so oxygen moves from the alveoli to the blood. Carbon dioxide diffuses in the opposite direction.

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