This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2018, Subject name: Biochemistry
[{'content': 'Vitamin K is required for: \nSelect and explain. \nA. Hydroxylation, B. Chelation, C. Transamination, D. Carboxylation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 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', 'role': 'assistant'}]