Bacterial Growth Flashcards
1
Q
bacterial cell division
A
binary fission
2
Q
cell division in bactera
A
- parent cell
- cell enlarges
- chromosome replicated
- cross-wall forms within cell
- end results-2 offspring identical to parent
3
Q
exponential growth
A
2n
4
Q
measure growth
A
g= 0.301 (tx-t0)/ logNx-log N0
5
Q
bacteria culture
A
- pure culture
- suitable grow in media
- sat growth cond
- sterile techniques
6
Q
limit of B cultures
A
heteregenous
7
Q
growth in liquid cultures
A
homogenous supsension of cells in broth
8
Q
what flask do you grow them in
A
Erlenmeyer Flask
9
Q
name the phases
A
lag
log
stat
death
10
Q
lag phase key features
A
no increase in cell number
cell adapt to growth conditions
cell increase in size
1-6 hours
11
Q
log phase
A
binary fission
6-48 hours
mid lag phase are active
12
Q
dif microbes will have different …………
A
doubling times
13
Q
stat phase
A
log phase will end as limiting nutrients or waste products is toxic
growth is slow the reapid then plateu
14
Q
stat phase
A
endospores are made
15
Q
decline phase is variable dependant on
A
microbe
conditions
