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Homework answers / question archive / Auburn University BIO 120 Quiz 5 1)Filter sterilization requires a filter of 0

Auburn University BIO 120 Quiz 5 1)Filter sterilization requires a filter of 0

Biology

Auburn University

BIO 120

Quiz 5

1)Filter sterilization requires a filter of 0.45 microns.

  1. Chemoorganotrophs oxidize inorganic ions such as nitrate or iron to obtain energy to fix carbon dioxide.
  2. The decolorizer used in acid-fast staining is:
  3. A/an             medium contains substances that cause some bacteria to take on an appearance that distinguished it from other bacteria.
  4. Only numbers between               CFUs are considered statistically valid and should be counted.
  5. Cell turbidity can be measured in a                 .
  6. Counts for the standard plate count method are made after                       hours of incubation.

 

  1. The             of a culture can be determined and related to cell growth.
  2. The           method is universally used to determine the NUMBER of organisms in water, milk, and food samples.
  3. Cell turbidity can be measured by a spectrophotometer and is expressed as a measure of
  4. How cool must agar media be before bacteria can be added without killing the bacteria?
  5. Standard plate counts are reported as a number of
  6. A medium that allows certain bacteria to grow but inhibits other bacteria is a
  7. The                method utilizes statistical tables to determine the probable number of coliforms present.
  8.              , which are found in the intestines of humans and warm-blooded animals, can be used as indicator bacteria to suggest the potential for disease.

 

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