Question

Assertion (A): Thrombin is the inactive form of prothrombin which is produced during blood coagulation.

Reason (R): Vitamin K, a fat-soluble vitamin, is essential for the production of prothrombin.

Options

• A is True and R is False.

• A is False and R is True.

• Both A and R are True.

• Both A and R are False.

Answer 1

A is False and R is True.

Explanation:

Assertion (A) is false because prothrombin is inactive and is converted into active thrombin during coagulation. Reason (R) is true, vitamin K is essential for producing prothrombin.