BHU PMT BHU PMT (Screening) Solved Paper-2011

  • question_answer
    Which of the following cations is required for the conversion of prothrombin into active thrombin by thromboplastin?

    A) \[C{{u}^{2+}}\]                                 

    B)  \[P{{e}^{3+}}\]

    C) \[F{{e}^{2+}}\]                                 

    D)  \[C{{a}^{2+}}\]

    Correct Answer: D

    Solution :

                     In the presence of \[C{{a}^{2+}},\]the prothrombinase inactivates heparin.  The  prothrombinase catalyses the breakdown of an inactive plasma protein prothrombin into thrombin.


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