Multiple choice

Deficiency of Vitamin K causes impairment of....

  1. Blood clotting

  2. Nervous system

  3. Digestive system

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A Correct answer
Explanation

Vitamin K is a critical cofactor for the carboxylation of glutamic acid residues in several blood-clotting proteins, such as prothrombin. A deficiency in Vitamin K leads to impaired blood coagulation, resulting in excessive bleeding. It does not directly impair the nervous or digestive systems.