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Home Q & A Board Biology-Related Homework Help Cell Biology
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LMD LMD
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6 years ago
Bacteria that are able to grow in humans and cause disease have likely evolved to be
 
  A) psychrophiles.
  B) mesophiles.
  C) thermophiles.
  D) hyperthermophiles.


Relative to enzymes in mesophilic microorganisms, which of the following is NOT characteristic of enzymes in psychrophiles?
 
  A) decreased alpha helices
  B) decreased beta sheets
  C) less hydrogen bonds
  D) less ionic bonds


An agar plate for counting colonies and maximizing statistical validity should ideally contain
 
  A) 1 to 100 colonies.
  B) 50 to 100 colonies.
  C) 30 to 300 colonies.
  D) 100 to 1000 colonies.


Optical density and viable cell concentration are LEAST proportional to each other during
 
  A) lag phase.
  B) exponential growth phase.
  C) stationary phase.
  D) death phase.


The time between inoculation and the beginning of growth is usually called the
 
  A) lag phase.
  B) log phase.
  C) dormant phase.
  D) death phase.
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elana1980elana1980
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6 years ago
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LMD Author
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#2
6 years ago
Thank you very much
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