All of the statements are true about gas molecules. A and B relate to the process of diffusion of gas molecules from high to low pressure areas until they reach equilibrium. C is true as gas molecules can diffuse easily through thin respiratory epithelium. D is true as the concentration of gases is measured in terms of partial pressures.

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Gas Molecule(s)

Question 13

Multiple Choice

Gas molecule(s) :

A) move randomly from areas of higher partial pressure to lower partial pressure
B) move until equilibrium is reached
C) diffuse readily through the respiratory epithelium
D) concentration is measured in terms of pressures and partial pressures.
E) All of the above are true of gas molecules.

Correct Answer: