Which Statement Accurately Describes Alveolar Exchange of Oxygen

question 144

Multiple Choice

Which statement accurately describes alveolar exchange of oxygen?

• A) Oxygen diffuses from the alveolus to the blood because the alveolus has a higher partial pressure of oxygen.
• B) Oxygen diffuses from the alveolus to the blood because the alveolus has a lower partial pressure of oxygen.
• C) Oxygen diffuses from the blood to the alveolus because the alveolus has a higher partial pressure of oxygen.
• D) Oxygen diffuses from the blood to the alveolus because the alveolus has a lower partial pressure of oxygen.

---

Definitions:

Who's

The contraction of "who is" or "who has."

Lose

To be deprived of something or fail to win, such as losing an object, game, or opportunity.

Past

The past refers to the time period that has already happened, contrasting with the present and future.

Accept

To receive or agree to take something offered or to acknowledge the truth or validity of something.