BVP Medical BVP Medical Solved Paper-2007

  • question_answer
    A bacterium divides after every 35 minutes. If a culture containing \[{{10}^{s}}\]cells per mL is grown, then cell concentration per mL after 175 minutes wilt be

    A)                  \[175\times {{10}^{5}}\]                              

    B)  \[125\times {{10}^{s}}\]

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

    D)  \[32\times {{10}^{5}}\]

    Correct Answer: D

    Solution :

                     Bacteria generally divides by binary fission, in this one cell divide to produce two cells.                 \[1\times {{10}^{5}}cell\xrightarrow[1stdiv.]{}2\times {{10}^{5}}\xrightarrow[2nddiv.]{}\]1 x 105                 \[4\times {{10}^{5}}\xrightarrow[3rddiv.]{}8\times {{10}^{5}}\xrightarrow[4thdiv.]{}16\times {{10}^{5}}\]                                                                 \[\xrightarrow[5thdiv.]{}32\times {{10}^{5}}\] So, cell concentration per mL after 175 minutes will be \[32\times {{10}^{\mathbf{5}}}.\]


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