Serum is essentially identical to plasma except for the absence of __________.
A) fibrinogen
B) nitrogenous wastes
C) platelets
D) glucose
E) albumin

Question

Quizplus · Accepted Answer

Serum is the liquid portion of blood that remains after blood has been allowed to clot and the clot has been removed. The only difference between serum and plasma is that plasma contains fibrinogen, which is used in blood clotting. Since fibrinogen is removed during the clotting process, it is absent in serum.

Serum Is Essentially Identical to Plasma Except for the Absence