BCECE Medical BCECE Medical Solved Papers-2003

  • question_answer
    Sexual phase of Plasmodium life cycle occur in:

    A)  man          

    B)  mosquito

    C)  pig           

    D)  goat

    Correct Answer: B

    Solution :

    Plasmodium is digenetic i.e., it completed its life cycle in two hosts. The asexual cycle is passed in man in two phases, first phase in liver cells is called liver schizogony, which involve multiple fission forming merozoits at the end. The second phase is completed in red blood corpuscles. It is known as erythrocytic schizogony, which forms gametocytes at the end. Sexual cycle of Plasmodium is completed in female Anopheles mosquito. It also involves two phases gametogony and sporogony. Gametogony concerned with production and fusion of gametes whereas sporogony is postzygotic multiplication resulting the formation of infective individual the sporozoite. Taenia solium completes its life cycle in two hosts the man and the pig. The secondary or intermediate host acquire infection by injecting die onchospheres.


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