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Breathing

Which of the ...

Question

Which of the choices below determines the direction of respiratory gas movement?

A

solubility in water

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B

partial pressure gradient

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C

the temperature

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D

molecular weight and size of the gas molecule

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Solution

The correct option is B
partial pressure gradient

The principles of gas exchange are based on the partial pressure of oxygen and carbon dioxide, which, as gases, move by diffusion

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