What is the first step in the formation of a blood clot?
A) Prothrombin activator starts to react with additional calcium ions.
B) Platelets break down and cause the release of thromboplastin.
C) Thrombin converts the plasma protein fibrinogen into threads.
D) The threads of fibrin form a net to entrap red blood cells and platelets.

Question

Quizplus · Accepted Answer

The first step in the formation of a blood clot involves the breakdown of platelets, which leads to the release of thromboplastin. This substance is crucial for the subsequent steps in the clotting process, including the conversion of prothrombin into thrombin.

What Is the First Step in the Formation of a Blood