The difference in concentration of various constituents in the plasma and interstitial fluid ensures that the constituents will
A)be able to chemically react at the appropriate place.
B)be able to diffuse through the capillary wall.
C)remain in their respective locations.
D)require an active transport mechanism to move.

Question

Quizplus · Accepted Answer

The difference in concentration of various constituents in plasma and interstitial fluid creates a concentration gradient, which allows for diffusion of these constituents across the capillary wall. This is important for the exchange of nutrients, gases, and waste products between blood and tissue. If there were no concentration gradients, diffusion would not occur, and these processes would be compromised. The other options do not fully explain the role of concentration gradients in facilitating movement of constituents between blood and tissue.

The Difference in Concentration of Various Constituents in the Plasma