The number of colonies obtained in a plate count does NOT depend on the :

The number of colonies obtained in a plate count does NOT depend on the
 
  A) inoculum volume.
  B) size of the colonies.
  C) type of culture medium.
  D) incubation time.

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What temperature is most commonly used for autoclaves to sterilize growth media and other devices prior to experimentation?
 
  A) 95 C
  B) 101 C
  C) 121 C
  D) 140 C

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Most mesophilic organisms can grow in a temperature range of
 
  A) 0-15 C.
  B) 10-20 C.
  C) 20-40 C.
  D) 50-65 C.

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A microbe growing in a refrigerator is likely
 
  A) psychrophilic.
  B) mesophilic.
  C) psychrotolerant or psychrophilic.
  D) hyperthermophilic.

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Consider solution A (pH 6) and solution B (pH 9). Which of the following statements is CORRECT?
 
  A) Solution A is 3 times more acidic than solution B.
  B) Solution A is 300 times more acidic than solution B.
  C) Solution B is 1,000 times more alkaline (basic) than solution A.
  D) Solution B is 3,000 times more alkaline (basic) than solution A.