Bacillus cereus divides every 30 minutes. You inoculate a culture with 100 After 3 hours, how many bacteria are present
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Bacillus cereus divides every 30 minutes. You inoculate a culture with 100 After 3 hours, how many bacteria are present?
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- A culture with approximately 3x104 cells/mL were incubated. After 3 hours, the number of cells had increased to 6x105 a) How many generations have occurred?You inoculated a culture with an initial cell count of 6.5x10^3 cells. The generation time for this organism is 25 minutes. You grew the culture for 10 hours. a) How many generations occurred?b) How many cells will be present after the 10 hours?A patient had his appendix removed in an emergency surgery. A single Klebsiella pneumoniaecell contaminates the wound. If this bacterium divides every 35 minutes, how many bacteria will be present in the wound after 7.5 hours?
- If a flask is inoculate with 10 E. coli cells. After 6 hours you now have 200,000 cells. determine both n (number of generations) and g (generation time) in minutes? A culture of S. epidermidis is growing. It divides every 20 min. After 4 hours, how many generations occurred?You are growing a culture of S. aureus. You know that 9 generations have occurred after 6 hours. What is the generation time in minutes? if i started a culture with 1000 cells, after 8 generations, how many cells will i have?Showing the diagram of dividing bacterium?
- If the generation time of Bacillus cereus is 28 minutes, how many cells of B. cereus will there be after an 90 minutes?A food sample was cooked. The bacterial population in the food decreased from 500,000 cells to 5 cells in 30 minutes. What is the decimal reduction time for this treatment?When counting bacteria, the difference between the standard plate (STP) count and a direct microscopic count is that STP counts the number of ......... ...cells only.
- There are five bacteria in a petri dish and its number triples every minute. How many bacteria are in the petri dish after 10 minutes.?If you do not see single colonies on some of the plates, explain what might have happened to the bacteria?In a plate count, 1 mL of culture is spread on a plate and incubated for 24 hours. 250 colonies are counted. Answer the question below. there were _____cells in the 1 mL of culture that was spread on the plate. If the culture was diluted 1:100 prior to plating, how many cells were there per mL in the original culture? _________