Pretest 2 Micro

 Which of the following has bacteriochlorophylls and uses alcohols for carbon?

Consider a culture medium on which only gram-positive organisms such as Staphylococcus aureus colonies can grow due to an elevated NaCl level. A yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the pH as a result and changing the color of a pH indicator chemical. This type of medium would be referred to as a(n)

 In one hospital, Pseudomonas aeruginosa serotype 10 infected the biliary tract of 10 percent of 1300 patients who underwent gastrointestinal endoscopic procedures. After each use, endoscopes were washed with an automatic reprocessor that flushed detergent and glutaraldehyde through the endoscopes, followed by a tap water rinse. P. aeruginosa serotype 10 was not isolated from the detergent, glutaraldehyde, or tap water. What was the source of the infections?

 A biochemical test, in the microbiology world, is used to determine

 Which one of the following provides taxonomic information that includes the information obtained in each of the other options listed?

Flow cytometry, where a cell is passed through a light source such as a laser beam, can directly indicate all EXCEPT which one of the following about a cell?

Which of the following bacteria is gram-negative?

 Which of the following form conidiospores?

Streptomyces differs from Actinomyces because Streptomyces

Which of the following statements regarding lichens is FALSE?