A bacterium divides every 35 minutes. If a culture containing 10 5 cells/ml is grown for 2 hours 55 minutes, what will be the cell concentration per ml?

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TestHub · Accepted Answer

The bacterium divides after every 35 minutes through simple mitotic division. The duration of cell division allowed is 2 hours 55 minutes (175 minutes). Therefore, the number of divisions are $\frac{175}{35} = 5$

Since one bacterium on division produces two cells, the cell concentration after 175 minutes will be

$= 1 0^{5} \times (2)^{5} = 32 \times 1 0^{5}$

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