Bailey & Scotts (1 -

Question 1

The most specific and exclusive taxon used in the clas- sification of microorganisms is:
a. Family
b. Order
c. Species
d. Genus

Answer 1

C. Species

Question 2

The process consisting of a series of methods designed to
provide the microbiologist with relevant and useful clini- cal information about a microorganism is:
a. Classification
b. Identification
c. Organization
d. Taxonomy

Answer 2

B. Identification

Question 3

Classification and naming of organisms are useful in
diagnostic microbiology for all of the following except:
a. Providing standardized groupings for identification
b. Standardized groupings are always genotypically simi-
lar at 0.98%
c. Standardized groupings share similar phenotypic traits
d. The ability of organisms within a standard group may
be identified using similar methods

Answer 3

c. Standardized groupings share similar phenotypic traits

Question 4

Which of the following is not a correct use of the bino-
mial nomenclature system? (Select all that apply.)
a. Staphylococcus Aureus (italized)
b. S. aureus (italized)
c. Staphylococcus aureus (italized)
d. Staphylococcus aureus

Answer 4

a. Staphylococcus Aureus

d. Staphylococcus aureus

Question 5

Labeling: Label each of the following characteristics as either a phenotypic (P) or a genotypic (G) characteristic.
_____ Color of growth on artificial media
_____ The presence of an antibiotic-resistance DNA se-
quence
_____ The shape of the bacterial cell
_____ The arrangement of the bacterial cells on a micro-
scope slide
_____ The ability of the organism to ferment lactose

Answer 5

P
G
P
P
P

Question 6

Mass spectrometry is a technique used to separate and identify the spectrum of proteins and peptides that are expressed by microorganisms. This method is considered a ________method for the characterization and classifi- cation of organisms.
a. phenotypic
b. chemotaxonomic
c. genotypic
d. polyphasic

Answer 6

b. chemotaxonomic

Question 7

Which of the following methods would be considered chemotaxonmic?
a. Fatty acid analysis
b. Protein mass spectrometry
c. Cell wall composition
d. All of the answers are correct

Answer 7

d. All of the answers are correct