What is the function of the plasma proteins in blood? A. to transport oxygen. B. to regulate electrolyte balance C. to exert osmotic pressure and so help maintain blood volume. D. to function as a non-specific body defence mechanism.
Option C. Function of plasma proteins is to exert osmotic pressure and help to maintain blood volume. Plasma proteins exist withinside the plasma however now no longer withinside the interstitial fluid. Hence their osmotic affect attracts water into the blood. Haemoglobin which isn't always a “plasma protein” transports oxygen.