Question

Vitamin K is required for ______.

Options

• change of prothrombin to thrombin

• synthesis of prothrombin

• change of fibrinogen to fibrin

• formation of thromboplastin

Answer 1

Vitamin K is required for synthesis of prothrombin.

Explanation:

The antihaemorrhagic factor is another name for vitamin K. This vitamin is required for the production of prothrombin in liver cells, which is required for proper blood coagulation. It's also produced by bacteria in the intestine.