Answer:
Part 1, Bacteria cell starts dividing as it grows in size
Part 2 ,
After 30 minutes [tex]= 200[/tex]
After 60 minutes [tex]= 400[/tex]
After 90 minutes [tex]= 800[/tex]
After 120 minutes [tex]= 1600[/tex]
Explanation:
Part 1
Microbes particularly bacteria are one celled living species. Whenever the size of bacterium increases and it crosses the threshold limit, it divides into two cells.
Thus growth in bacterium population refers to the increase in the number of cell rather than its size.
Part 2
Give
generation time [tex]= 30[/tex] minutes
Thus, after every [tex]30[/tex] minutes the cell will divide and increase in number
Thus
At time t [tex]= 0[/tex], number of bacteria [tex]= 100[/tex]
At time t [tex]= 30[/tex] minutes , number of bacteria [tex]= 2^n * 100 = 2^1 * 100 = 200[/tex]
At time t [tex]= 60[/tex] minutes , number of bacteria [tex]= 2^n * 100 = 2^2 * 100 = 400[/tex]
At time t [tex]= 90[/tex] minutes , number of bacteria [tex]= 2^n * 100 = 2^3 * 100 = 800[/tex]
At time t [tex]= 120[/tex] minutes , number of bacteria [tex]= 2^n * 100 = 2^4 * 100 = 1600[/tex]