Bacterial Growth and Measurement Flashcards
1
Q
how to bacteria grow?
A
binary fission
2
Q
steps of binary fission
A
- cell gets bigger in volume
- chromosome is replicated
- contents divided up and distributed
- septum forms
- cell divides and becomes 2 daughter cells
3
Q
psychrophiles
A
like cold temps
4
Q
facultative psychrophiles (aka psychrotrophs)
A
like room temp (doubling time much greater at cold temps)
5
Q
mesophiles
A
pathogenic, like human temperature
6
Q
thermophiles
A
like boiling temperatures
7
Q
hypotonic
A
like to be in small amounts of solute
8
Q
isotonic
A
like equal amounts of solute in cell and outside cell
9
Q
hypertonic
A
like high amounts of solutes in environment
10
Q
osmotolerance
A
can grow in salty conditions
11
Q
halophiles
A
require a salty environment to grow
12
Q
aerobe
A
grows in the presence of O2
13
Q
anaerobe
A
grows without O2
14
Q
obligate aerobes
A
must have O2
15
Q
facultative anaerobes
A
can grow without O2, but prefer to have it
