microbiology Flashcards
1
Q
how do bacteria multiply
A
binary fission, every 10 minutes
2
Q
how do you make cultures with aseptic technique (STEP 1)
A
- lift lid of PETRI DISH towards flame( to sterilise air by moving microbes away-killing them)
3
Q
how do you make cultures with aseptic technique (STEP 2)
A
2.put drop of culture on agar-spread evenly
4
Q
how do you make cultures with aseptic technique (STEP 3)
A
- put drops of antibiotics onto culture if needed
5
Q
how do you make cultures with aseptic technique (STEP 4)
A
- few bits of tape( to allow aerobic respiration), incubate 25°
6
Q
how do you make cultures with aseptic technique (STEP 5)
A
measure size of culture/ area with no bacteria with πr²
