Bacterial division Flashcards
how do bacteria multiply
bacteria multiply by simple cell division
what is simple cell division (binary fission)
where one bacteria splits into 2 bacterial cells
what is another word for cell division in bacteria
binary fission
when can bacteria carry out binary fission?
once every 20 minutes as long as they
have enough nutrients and
the temperature is suitable
under ideal conditions, a type of bacterium divides every twenty minutes. Calculate the number of bacteria present after three hours.
number of bacteria = 2^n
n= number of rounds of division
180mins/20mins= 9 rounds of division
number of bacteria = 2^9= 512
(HIGHER)
512 in standard form is…
5.12 x 10^2
under ideal conditions, a type of bacterium divides every 20 minutes. calculate the number of bacteria present after 8 hours.
16 777 216 8 hours = 60x8=480mins 480/20= 24 rounds of division number of bacteria = 2^n number of bacteria= 2^24=16 777 216
(HIGHER)
put 16 777 216 in standard form to 3d.p
1.678 x 10^7
what is another word for cell division in bacteria
binary fission
when can bacteria carry out cell division
once every 20 minutes as long as they have enough nutrients and the temperature is suitable
(HIGHER)
what is 15673792 in standard form? to 4d.p
1.5674 x 10^7
what is binary fission?
the process that bacteria use to carry out cell division
what is cell division in bacteria is called?
binary fission
