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WBCS Preliminary Examination 2022 — General Studies · Question 138 of 200

Q138
General ScienceBiology
Vitamin which helps in clotting of blood is
  1. a.A
  2. b.D
  3. c.B
  4. d.K

Answer: (D) K

Vitamin K is essential for blood coagulation (clotting). Its chemical name is Phylloquinone ($K_1$) or Menaquinone ($K_2$). It is required for the synthesis of several clotting factors. Deficiency of Vitamin K leads to excessive bleeding. Vitamin K is found in green leafy vegetables.

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