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At 5 pm, there were 20 bacterial cells in a test tube. Knowing that the generation time is 6 minutes, how many bacteria do you expect there will be in the test tube at 5:30 pm? Bacteria reproduce by binary fission, in which one bacterium becomes two bacteria.

Respuesta :

The question is incomplete as it does not have the options which are:

  • 120 Cells
  • 640 Cells
  • 1280 Cells
  • 56 Cells.

Answer:

640 Cells

Explanation:

The bacterial cell divides by the process of binary fission which divides a parent bacterial cell into two daughter cells.

In the given condition, the generation time or the average time between the two generations is 6 minutes. When he analyzed the population at 5 pm, he found 20 bacterial cells.

At 5.30 pm, the bacterial cell will have 640 cells as

1. After every 6 minute the population doubles

2. The minute's difference between 5 pm to 5.30 pm is 30 minutes.

3. Since 1 generation time-6 min therefore 30 minutes will have = 30/ 6 = 5 generation.

4. The bacterial cell will be calculated using formula

[tex]2^{number of generations}[/tex] x an initial number of bacteria in a population, therefore, [tex]2^{5}[/tex] x 20 = 640 bacterial cells.

Thus, 640 Cells is the correct answer.

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