<prompt> Vitamin K is required for:HydroxylationChelationTransaminationCarboxylation  <response>: Vit k Act as coenzyme in Carboxylation of clotting factor 2,7,9,10 Only fat-soluble vitamin with coenzyme function. 3 forms k1-phyloquinone k2-menaquinone k3-manadione water soluble-synthetic form Deficiency lead to hemorrhagic disease of new born Prophylactic administration of Vit k for all new born advised 