A bacterial cell in nutrient broth with a generation time of 20 minutes will produce 64 cells in 2 hours. Group of answer choices True False

A bacterial strain is grown in nutrient medium at 37 ˚C under aerobic conditions.The medium is inoculated with 102 cells from a seed culture. If the number ofcells in the culture is 105 after 10 hours of growth, the doubling time of the strain(rounded off to nearest integer) is ____________h

A bacteria culture initially contains 100 cells and grows at a rate proportional to its size. After an hour the population has increased to 420.

A type of bacteria have a division time of 30 minutes. If the population starts with 100 cells, how many bacteria cells would be there after 4h?

5 x 104 cells of Bacillus cereus were inoculated into fresh sterile nutrient medium and incubated at 30oC. After 2 hour lag phase, cells grew exponentially with a generation time of 30 minutes. How many cells would be present after 8 hours incubation? The growth of the bacterium in log phase can be expressed by the following equations: N1 = N0 2n & g = (T1 – T0) / n Where n = number of generations, N0 = initial number of cells at a particular time (T0), N1 = final number of cells at a particular time (T1), and g = generation time Group of answer choices 1.28 x 107 cells/ml 4.10 x 107 cells/ml 2.05 x 108 cells/ml 3.28 x 109 cells/ml 5.24 x 1010 cells/ml

A bacterial strain is growing exponentially. At 10:00 am the titre of the culture is 4 x 106 cells per ml. At 4 pm, the culture is still growing exponentially and the titre has increased to 6 x 108 cells per ml. Assuming that the bacterial strain was in exponential phase growth prior to the measurements at 10:00 am, how many generations would have elapsed between 08:00 am and 4pm? Show all of your calculations. This culture will eventually reach the death phase when the nutrients become limited. What does happen in this phase? What strategies do bacteria develop to cope with nutrient shortages?