A Staphylococcus aureus human carrier accidentally sneezed nearby a delicious cr

Question

A Staphylococcus aureus human carrier accidentally sneezed nearby a delicious crab salad during a picnic at Tropical park. The aerosol generated from the unprotected sneeze inoculated the salad with approximately 100 S. aureus cells. If S. aureus divides using the model indicated by this question (quadruplet fission) and has a generation time of 30 minutes/generation, then how many S. aureus cells will be there in 16 hours. You must show all of your calculations and units of measurement to obtain credit for your answer. An answer alone will not be considered for grading as the whole process must be shown in the answer. 6144 cells 2.58 times 10^10 cells 1.10 times 10^20 cells 1.84 times 10^21 cells 4.29 x 10^9 cells

Explanation / Answer

1. There are 100 S.aureus are innoculated. Each S.aureus divieds to produce 4 cell per each division.

2. From the above we can calculate that 100x4 = 400 cells are produced.

3. The generation time is 30 minuts/generations. In 16 hours there would be 16 x 2 = 32 generations.

4. There are 400 cells if each cell divides for 16 hours the number of cells would as follows

400^32 = 1.844674e83

5. In the above figure 'e' stands for metric prefixes that means 'EXA'

5. The value is equal to 1.84467E-22E.

6. The correct answer 1.84x1021 cells.

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