Binary fission

Cards (9)

How do bacteria divide
Binary fission
2 things that must happen for a bacterial cell to divide
Grow
Replicate it’s genetic material
Steps of binary fission
Bacteria grows and reproduces its genetic material
Two circular strands of DNA move to opposite sides of the cell
A new cell wall forms down the middle of cell
The two halves pull apart to form two cells
Is the genetic material equally split between two new cells
Each cell receive one copy of the circular strand of DNA, however, the plasmids are randomly arranged, so there are often more plasmids in one cell than the other
What do bacteria require for fast growth
Warmth
Moisture
Plenty of nutrients
Nutrient broth
Liquid medium containing nutrients for bacterial growth
Agar
Gel like substance used as a solid medium to culture bacteria
Why are incubators set to a maximum of 25°
To prevent the growth of harmful pathogens and so that bacteria don’t multiply too quickly
Zone of inhibition
A clear area on an agar plate where bacteria have not grown due to an antibiotics effect