Oxygen Moves from Blood into the Interstitial Fluid and Then

question 3

Multiple Choice

Oxygen moves from blood into the interstitial fluid and then to body cells because it

• A) diffuses from a region of higher partial pressure to a region of lower partial pressure.
• B) diffuses from a region of lower partial pressure to a region of higher partial pressure.
• C) descends down an osmotic gradient, following the movement of water.
• D) diffuses from a higher to a lower pH.

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