Gas is exchanged in the alveoli by a process of _____.

Simple diffusion

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Active transport

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Facilitated diffusion

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Filtration

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Solution

The correct option is A
Simple diffusion

Gas exchange between the alveoli and blood capillaries occurs by simple diffusion. This results from the gradient created as a result of the difference in the concentration of the respiratory gases in the alveoli and capillaries.

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Gas is exchanged in the alveoli by a process of _____.

The correct option is A Simple diffusion Gas exchange between the alveoli and blood capillaries occurs by simple diffusion. This results from the gradient created as a result of the difference in the concentration of the respiratory gases in the alveoli and capillaries.

The correct option is A
Simple diffusion

Gas exchange between the alveoli and blood capillaries occurs by simple diffusion. This results from the gradient created as a result of the difference in the concentration of the respiratory gases in the alveoli and capillaries.