The MPN Method For each of the following statements about the MPN Method, answer

Question

The MPN Method
For each of the following statements about the MPN Method, answer "True" or "False".

True False  The MPN method allows you to use enrichment broth cultures to count bacteria in a water sample.
True False  A water sample with an MPN of 33 coliforms/dl is not significantly different from a sample with an MPN of 17 coliforms/dl.
True False  After incubation, an MPN tube that was inoculated with only one coliform can look the same as a tube that recieved a dozen coliforms.
True False  It's not possible to use the MPN method to ennumerate coliforms in a water sample if the concentration is more than 2000 per dl.
True False  The acronym "MPN" stands for: Mannitol, Peptone and Nutrients.

Explanation / Answer

The MPN method allows you to use enrichment broth cultures to count bacteria in a water sample.

A water sample with an MPN of 33 coliforms/dl is not significantly different from a sample with an MPN of 17 coliforms/dl.

After incubation, an MPN tube that was inoculated with only one coliform can look the same as a tube that recieved a dozen coliforms.

It's not possible to use the MPN method to ennumerate coliforms in a water sample if the concentration is more than 2000 per dl.

The acronym "MPN" stands for: Mannitol, Peptone and Nutrients.

False

True

True

False

False

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.