Multiple choice

Which of the following vitamins is essential for the formation of the plasma protein, prothrombin, in the liver?

  1. Vitamin A

  2. Vitamin B

  3. Vitamin C

  4. Vitamin E

  5. Vitamin K
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Vitamin K is a fat soluble vitamin, so our body stores it in fat tissue and the liver. It is best known for its role in helping blood clot. Blood clotting factors are needed for blood to clot (coagulation). Prothrombin or factor II is one of the clotting factors made by the liver. Vitamin K is needed to make prothrombin and other clotting factors.

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