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SSC General Science & Technology Sample Paper NCERT Sample Paper-5

  • question_answer
    Vitamin-D is syntfiesised in skin, by the action of sunlight on

    A)  Cholesterol       

    B)         matate hydroxylase

    C)  cephano-cholesterol       

    D)  7-hydroxy cholesterol

    Correct Answer: D

    Solution :

    [d] Vitamin-D is formed in the skin from a cholesterol derivative (7-hydroxy cholesterol) by the action of ultraviolet rays of sunlight.


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