Cultruring Microorganism Flashcards
1
Q
Bacteria can multiply by simple cell division as of often as
A
Once every twenty minutes
2
Q
Optimum conditions for bacteria to grow
A
In a nutrient broth solution or as colonies on an agar plate
Require sufficient amount of nutrients and a suitable le temp
3
Q
Petri dishes must be what befor use
A
Sterilised
4
Q
Inoculating loops should be sterilised by
A
Passing through a flame
5
Q
Petri dish should be secure with
And stored how
A
Tape to stop micro organism getting in throug
To stop condensation drops falling onto agar surface
6
Q
Why are cultures incubated at a maximum of 25°
A
Reduces likelyhood of growth of pathogens that might be harfull to humans
7
Q
Why are they necessary in research
A
For investigating the action of disinfectants and anti biotic
