Uttarakhand PMT Uttarakhand PMT Solved Paper-2010

  • question_answer
    Which one of the following experiments suggest that simplest living organisms could not have originated spontaneously from non- living matter?

    A)  Microbes did not appear in stored meat

    B) Larvae could appear in decaying organic matter

    C)  Microbes  appeared  from  unsterilized organic matter

    D)  Meat was not spoiled, when heated and kept sealed in a vessel

    Correct Answer: D

    Solution :

    Pasteur performed experiments in which he took sterilised (by boiling) yeast and sugar solutions in a long necked, then he bent the neck of the flask like a neck of swan. After one month, he observed that no life appeared in flask solution because the curved flasks neck acts as a filter. He later on broken down the neck and observed the solution. He found that many micro-organisms were originated in solution.


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