An exponentially growing bacterial population increases its number from 10³ and reached 10 cells in 8.5 hours How long will it take for the population to reach 1018 cells? 09.5 hours 10.5 hours 11.5 hours 12.5 hours OLacks information, cannot be determined
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- An exponentially growing bacterial population increases its number from 103 to 1010 in 4.5 hours and reached 10¹4 cells in 8.5 hours. What is the growth rate of the population? O-7 generations/hour O-4 generations/hour O-3 generations/hour -6 generations/hour Lacks information, cannot be determined NextAn exponentially growing bacterial population increases its number from 10³ to 104 cells in 8.5 hours. What will the final population be after 16 hrs? 10^24 10^23 10 21 10/22 Lacks information, cannot be determined NeAn exponentially growing bacterial population increases its number from 103 to 1010 in 4.5 hours and reached 1014 cells in 8.5 hours. How many generations have gone by at the end of the incubation? 25 50 O Lacks information, cannot be determined N . Previous 37 20
- Log Nt = Log N0 – t/D. D is the time required for a log kill. A single dose of mouthwash is added to a bacterial culture with 10 million cells/mL and, after 30 minutes, one hundred thousand viable cells/mL remain. How many would survive at the end of 1.5 hours? Based on the equation, can you ever totally decimate the population? In a practical sense, when would you assume that all the cells are dead?Bacteria reproduce by fission (splitting in two) and can respond very rapidly to environmental changes. A culture of bacteria is found to contain 4.95 X 109 bacteria and the carrying capacity of the culture is 5.0 X 109. How will the bacterial population change in the near future. Group of answer choices -it will increase very rapidly to K -it will increase very slowly to K -it will grow exponentiall -it will decrease very rapidly to KConsider the following graph depicting the population growth of bacteria in an “ideal” laboratory created condition. Explain what conditions would allow for a population to grow exponentially like in this example, and why this is unlikely to occur naturally in the wild. ✓✓ Population (number of bacteria) 35000 30000 25000 20000 15000 10000 5000 0 Population Growth of Bacteria in Ideal Conditions 2 Time (hours) 3
- Bacteria grown in a lab experience what is called an 'exponential phase' of population growth. Suppose that, during this phase, a colony of Escherichia coli you are growing has a per capita growth rate, r, of 0.0347 per minute. If the size of your colony at the start of the exponential phase is 0.25 billion cells, then approximately how large will it be in 120 minutes?A single dose of mouthwash is added to a bacterial culture with 10 million cells/mL and, after 30 minutes, one hundred thousand viable cells/mL remain. How many would survive at the end of 1.5 hours? Based on the equation, can you ever totally decimate the population? In a practical sense, when would you assume that all the cells are dead?25 H £ 3 D E C € SO F3 $ 4 R F V 2 % 5 27. Archaebacteria are single-celled organisms that live in ponds and reproduce by fission (i.e. each bacterium splits in two identical organisms). If you put one archaebacterium in a certain pond, it will reproduce by fission once a day; in 30 days, the whole pond surface will be completely covered by bacteria. How many days will it take to cover the whole surface, if we initially put two bacteria in the pond? T G FS B A. 30 days. B. 28 days. C. 29 days. D. It depends on the pond surface area. E. 15 days. & 6 MacBook Air F6 Y H / 7 N F7 U J ( 00 8 M DII FB I ) 9 K FO O HE 10 O L 4 F10 P ? - 0.0 Ç ✓ é - è [ 1 O
- If it takes 2 hours for a population of bacteria to grow from 100 cells to 1600 cells, what is the generation time of this bacterial species? 15 minutes 20 minutes 30 minutes 40 minutesComplete Table 1by doubling the number of bacteria (Clostridium sp.) and diatoms (Chaetoceros sp.) every 30 minutes and 60 minutes, respectively, and by writing the log10 of this number in the appropriate columns with the results , Draw a graph showing the growth (N) of the populations of both species from time = 0 (also written as t0) to time = 310 (t310) minutes. Draw both populations on the same graph. NB: It will be necessary to plot Chaetoceros sp. on a second y-axis. Label the axes and provide a suitable legends.At what amount of yeast does the population in Figure 14.3 level off? YEAST POPULATION GROWTH IN A SUGAR SOLUTION OVER A 20-HOUR PERIOD 7.5 6.0 4.5 3.0 1.5 8 10 12 14 16 18 20 Hours O 1.5 mg/cc 6.0 mg/cc O 3.0 mg/cc O 4.5 mg/cc Amount of yeast (mg/cc)