Why are the results of plate counts expressed as the number of colony-forming units, rather than the number of cells? Transcribed Image Text: Spread-plate method
Why are the results of plate counts expressed as the number of colony-forming units, rather than the number of cells? Transcribed Image Text: Spread-plate method
Solid agar
Incubate
Culture, diluted
as needed
Bacterial colonies
0.1-0.2 mL
appear only on surface.
Spread cells onto surface
of pre-poured solid agar.
Pour-plate method
0.1-1.0 mL
Melted cooled agar
Incubate
FIGURE 4.18 Spread Plates and Pour Plates
Some colonies appear on
surface; many are below surface.
These techniques can be used for plate counts.
Add melted cooled agar
and swirl gently to mix.
How it Works
1
It only takes a couple of minutes to fill in your details, select the type of paper you need (essay, term paper, etc.), give us all necessary information regarding your assignment.
2
Once we receive your request, one of our customer support representatives will contact you within 24 hours with more specific information about how much it'll cost for this particular project.
3
After receiving payment confirmation via PayPal or credit card – we begin working on your detailed outline, which is based on the requirements given by yourself upon ordering.
4
Once approved, your order is complete and will be emailed directly to the email address provided before payment was made!