Which of the following substances,if introduc | vedclass

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(D) The correct answer is $D$. Blood coagulation is a complex process involving a cascade of clotting factors. When tissue is damaged or platelets are

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Thromboplastin

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(D) The correct answer is $D$. Blood coagulation is a complex process involving a cascade of clotting factors. When tissue is damaged or platelets are activated,they release $Thromboplastin$. $Thromboplastin$ acts as a catalyst in the conversion of inactive $Prothrombin$ into active $Thrombin$ in the presence of $Ca^{2+}$ ions. Therefore,if $Thromboplastin$ is introduced directly into the bloodstream,it initiates the clotting cascade at that specific site,leading to blood coagulation.

Which of the following substances,if introduced into the blood stream,would cause coagulation of blood at the site of its introduction?

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