1.

A bacterium divides every 35 minutes. If a culture containing 105 cells/ml is grown for 175 minutes, what will be the cell concentration per ml after 175 minutes?

Answer»

ANSWERIt is GIVEN that a bacterium divides every 35 minutes. At 0 minutes, the culture contains 10 5 cells/mlAfter 35 minutes, the culture will contain 2 1 x 10 5 cells /mlSimilarly, after 175 minutes, that is after 5 generations, the number of cells will be 2 5 x 10 5 cells/mlThis is EQUAL to 32 x 10 5 cells/mlThus, the correct answer is '32 x 10 5 EXPLANATION:



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