Non-Communicable Diseases, Required Practical - Culturing Microorganisms Flashcards
1
Q
Where is the bacteria grown in?
A
Agar gel or broth solution
2
Q
Why must we grow bacteria at 25 degrees c and not higher?
A
Eliminates risk of growing pathogens
3
Q
Why must the petri dish be placed upside down
A
To stop unwanted bacteria coming from the air
4
Q
Why can’t we fully seal the lid?
A
This stops oxygen reaching the bacteria allowing anaerobic bacteria to grow.
5
Q
Why must we disinfect benches?
A
Prevents contamination
6
Q
Why should there be a blue Bunsen flame?
A
To create an updraft to stop contamination from the air.
7
Q
Why sterilise inoculating loop?
A
Kills unwanted bacteria on loop.
