JIPMER Jipmer Medical Solved Paper-2009

  • question_answer
    A bacterium divides after every 35 min., if a culture containing 10s cells per ml is grown, then cell concentration per ml after 175 min will be

    A)  \[175\times {{10}^{5}}\]   

    B)                         \[125\times {{10}^{5}}\]

    C)  \[48\times {{10}^{5}}\]                

    D)         \[32\times {{10}^{5}}\]

    Correct Answer: D

    Solution :

    As we know that bacterium divided after every 35 minutes through simple mitotic division therefore, number of divisions are \[\frac{175}{35}=5\] Since, one bacterium on division produces two cells so, cell concentration after 175 minutes will be \[={{10}^{5}}\times {{(2)}^{5}}\] \[=32\times {{10}^{5}}\]


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