Assertion : The process of clotting can occur in absence of all cellular elements except platelets Reason : Vitamin K is essential for blood clotting.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is falseD. If both assertion and reason are false

Assertion : The process of clotting can occur in absence of all cellul

1.	Assertion : The process of clotting can occur in absence of all cellular elements except platelets Reason : Vitamin K is essential for blood clotting.A. If both assertion and reason are true and reason is the correct explanation of assertionB. If both assertion and reason are true but reason is not the correct explanation of assertionC. If assertion is true but reason is falseD. If both assertion and reason are false
Answer» Correct Answer - B Activated platelets are essential for blood clotting because several of the cascade reactions take place on the surface of platelets. Vitamin K is essential for production of prothrombin. Prothrombin and many plasma clotting factors are produced in the liver. The liver requires vitamin K to produce prothrombin and several other clotting factors.

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