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Why are coliforms used as indicator organisms if they are not usually pathogens?
Coliforms are used as a indicator organism because they are abundant in matrix, easy to find, cost effective. Coliforms has frequently been used in water testing because of all of these benefits.
What is another word for poo bacteria?
coliforms
Why confirmed test is done?
looking for coliforms!
What is the difference between a fecal and non-fecal coliform?
Fecal coliforms have the ability to ferment lactose at 44C +/- 0.05C while regular coliforms ferment lactose at 35C-37C
Does a positive presumptive test mean that water is absolutely unsafe to drink?
No it doesn't, it just tells you that there are coliforms present, but not what kind. Coliforms themselves do not make you sick, the type of bacteria does.
What are the names for bathroom bacteria?
Coliforms E. coli is one example
How many coliforms can be present in safe drinking water?
over 9,000
What is presumptive test?
Presumptive test to confirmation of coliforms bacteria in the samples
What is a presumptive test?
Presumptive test to confirmation of coliforms bacteria in the samples
What microorganisms besides coliforms are liable to give positive presumptive test?
Microorganisms like coliforms are liable to give a positive presumptive test. Other types of organisms include gram negative bacteria like E. coli.
What microorganisms other than coliforms that are reliable to give positive presumptive test?
klebsiella
Are coliforms gram-positive or gram negative?
Gram negative
