Cell Biology 5 Bacterial Division Flashcards
1
Q
What happens during binary fission?
A
During binary fission one bacterial cell splits into two bacterial cells.
2
Q
How often and under what conditions can bacteria carry out binary fission?
A
Bacteria can carry out binary fission once every 20 minutes as long as they have enough nutrients and the temperature is suitable.
3
Q
Under ideal conditions, a type of bacterium divides every 20 minutes. Calculate the number of bacteria present after three hours.
A
Number of bacteria = 2^n
n = number of rounds of division
3 hours = 180 minutes
180/20 = 9 rounds of division
number of bacteria = 2^9
= 512
3
Q
How do bacteria multiply?
A
Bacteria multiply by simple cell division.
