How Does Diffusion Work in Allowing a Water Beetle to Use

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The Answer is If a water beetle grabs a fresh bubble from the atmosphere, it will use the oxygen in the bubble during its natural respiratory processes. As the partial pressure of O₂ in the bubble drops, it will eventually drop below that of the surrounding water. Once this occurs, the oxygen in the water will diffuse into the air bubble, allowing it to act like a gill. The bubble does not collapse because oxygen diffuses into it and because the principal gas in the bubble, N₂, tends to remain.

How Does Diffusion Work in Allowing a Water Beetle to Use

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