State PCS PYQPrelims 2020

UPPCS · Question 99

Which of the following vitamins is mainly responsible for blood coagulation in human being?

  1. Vitamin K
  2. Vitamin E
  3. Vitamin A
  4. Vitamin C
Show answer & explanation

Answer: (A) Vitamin K

Explanation

Vitamin K is needed to make clotting factors (prothrombin, factors VII, IX, X) in the liver, so it is essential for blood coagulation.