Serum

Question

Serum
A) is made from blood plasma
B) contains fibrinogen
C) has no antibodies
D) all of the above

Accepted Answer

Serum is made from blood plasma, which is the clear, liquid portion of the blood that remains after the removal of clotting factors such as fibrinogen. Serum also does not typically contain antibodies, as these are typically found in the fluid component of blood known as plasma. Therefore, the correct answer is A) is made from blood plasma.