Q.

Which of the following plasma proteins is involved in the coagulation of blood
 a) Serum amylase                b) A globulin                 c) Fibrinogen              d) An albumin

1 A
2 B
3 C
4 D

Ans.

c) Fibrinogen (factor I) is a soluble plasma glycoprotein, synthesized by the liver. It is converted by thrombin into fibrin during blood coagulation. Fibrin then cross-linked by factor XIII to form a clot.