The anticoagulant normally present in animal cell is:: (A) Vitamin K., (B) Heparin., (C) Hyaluronidase., (D) Dicoumarol.
Answer is B. Harper – 603
Heparin is used in clinical medicine to inhibit coagulation because it binds to the specific cationic site of antithrombin III, inducing a conformational change and promoting its binding to thrombin as well as to its other substrates.