An organism that is unable to grow in ambient air, grows as tiny ...

[joe]

An organism that is unable to grow in ambient air, grows as tiny colonies in 5 to 10 oxygen and 10 CO2, and grows under anaerobic environment is called a
 
  A) microaerophilic organism. B) strict anaerobe.
  C) microaerotolerant anaerobe. D) facultative anaerobe.

Question 2

A day shift microbiologist encounters an oxidase negative, non-lactose fermenter in a urine culture. To determine if it is a member of the Enterobacteriaceae or a nonfermenter, he sets up a TSI agar slant.
 
  After 10 hours of incubation at 35C in ambient air, the evening shift microbiologist reads the tube as a yellow slant and yellow deep or butt. This result
  A) indicates a member of the Enterobacteriaceae.
  B) could be due to a gram-positive organism. Perform a Gram stain.
  C) is invalid.
  D) indicates a nonfermenter.

[Tabitha_2016]

Answer to Question 1

A

Answer to Question 2

C

[joe]

TYSM

[tranoy]

Excellent