Compared with the interstitial fluid that bathes active muscle cells, blood reaching these cells in arteries has a
A) higher PO₂.
B) higher PCO₂.
C) greater bicarbonate concentration.
D) lower pH.
E) lower osmotic pressure.

Question

Quizplus · Accepted Answer

Arterial blood has a higher partial pressure of oxygen (PO₂) than interstitial fluid due to oxygen being carried by red blood cells.

Compared with the Interstitial Fluid That Bathes Active Muscle Cells