Vitamin K dependant clotting factors – Physiology MCQ

Which of the following are vitamin K dependant clotting factors?

A. II and IV

B. IX and X

C. III and V

D. VI and VII

Correct answer : B. IX and X

Vitamin K dependant clotting factors are II, VII, IX and X. Vitamin K is required for the gamma carboxylation of glutamic acid residues.