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Biology calculation Help plz URGENT

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    if the dry weight of a single bacterial cell is 1 x 10^-12 g, calculate the TOTAL dry weight in 100ml of a bacterial culture with a starting cell concentration of 1 x 10^6 cells/ml, a growing period of 3 hours and a mean generation time of 20 minutes.

    any help will greatly appericated . thanks
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    It's been a while since you posted and nobody's replied yet...maybe you should check out MarkedbyTeachers.com, TSR's sister site. It has the largest library of essays in the UK.

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    (Original post by sd2011)
    if the dry weight of a single bacterial cell is 1 x 10^-12 g, calculate the TOTAL dry weight in 100ml of a bacterial culture with a starting cell concentration of 1 x 10^6 cells/ml, a growing period of 3 hours and a mean generation time of 20 minutes.

    any help will greatly appericated . thanks
    Sorry this is a bit of a late reply, but better late than never. If you multiply the dry weight of a single bacterium by the initial number of bacteria, you get the initial mass. Then you'd have to double this 9 times (3 x 20 mins per hour, for 3 hours).

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