measuring microbial growth and pH Flashcards
1
Q
Make ___________ to reduce the number of microbes to a countable number.
A
serial dilutions
2
Q
optical density
A
Uses light scattering to determine the size of a microbial population
3
Q
what does optical density equal?
A
absorbance
4
Q
what does more turbidity equal?
A
more growth/higher absorbance
5
Q
what is pH the measure of?
A
hydrogen ion concentration
6
Q
acidophiles
A
prefer pH 5.5 and below
7
Q
alkaliphiles
A
prefer 8.5 and above
8
Q
neutrophiles
A
prefer pH 5.5-8.5
