The composition of the plasma of blood and the interstitial fluid differs chiefly in the concentration of ________.

Question

Quizplus · Accepted Answer

The plasma of blood and the interstitial fluid have different concentrations of dissolved gases (such as oxygen and carbon dioxide) and proteins (such as albumin and fibrinogen). This is due to the fact that many of these substances are selectively transported across the walls of blood vessels, and their concentrations can therefore vary between the plasma and interstitial fluid. Sodium ions, glucose and other sugars, water, and salts, on the other hand, are all present in both the plasma and interstitial fluid, and their concentrations are relatively similar.

The Composition of the Plasma of Blood and the Interstitial