Q. Which of the following prevents the conversion of prothrombin to thrombin in an undamaged blood vessel?
A) Heparin
B) Calcium ions
C) Thromboplastin
D) Fibrinogen
Explanation
During blood clotting, prothrombin is converted into thrombin with the help of thrombokinase and calcium ions. Heparin is an anticoagulant, which prevents the conversion of prothrombin into thrombin.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.