MCB 2010 Final IRSC
_________ are serious secondary infections that result from the killing of the normal
microbiota. - ANS-Superinfections
A disease that occurs at a greater than normal frequency for a given area or population
is considered: - ANS-Epidemic
A disease that suddenly has a higher than normal incidence in a population is -
ANS-Epidemic
A flexible, spiral shapes bacterium is called a: - ANS-Spirochete
A housefly carrying microbes from garbage to food that humans will ingest is an
example of - ANS-A mechanical vector
A media that will only grow gram negative organisms would be classified as: -
ANS-Selective
A naked virus - ANS-Has no envelope
A negative stain leaves cells colorless while staining the background of the smear -
ANS-True
A patient can be infectious during which of these stages of disease? - ANS-Prodromal;
incubation; decline; convalescence
A patient has a STD characterized by sporadically recurring, painful fluid filled blisters.
What is the most likely diagnosis? - ANS-Genital herpes
A patient walks into the clinic with a sore that appears to be primary syphilis. This
disease is caused by a spirochete. To diagnose this disease we use a dye that attaches
to the exterior of the organism. What type of microscope will be used to confirm your
diagnosis? - ANS-Darkfield
A vaccine is available against which of the following? - ANS-Hepatitis A and B
All of the following are associated with different members of the genus Bacillus
EXCEPT - ANS-Tuberculosis
, All of the following are characteristics of an ideal antimicrobial agent EXCEPT: - ANS-It
denatures proteins
All of the following are nor am flora of the colon EXCEPT: - ANS-Campylobacter
All of the following are normal flora of the upper respiratory tract EXCEPT: -
ANS-Streptococcus pyogenes
All of the following could live in an atmosphere of 5% oxygen EXCEPT - ANS-Obligate
aerobes
All of the following improves resolving power EXCEPT - ANS-Using a red filter on the
condenser
All of these are transmitted by exposure to blood or body fluids EXCEPT: -
ANS-Hepatitis A
An aquatic microbe that can grow only at the surface of the water is probably which of
the following? - ANS-A phototroph
Another term for the Kirby-Bauer test is the: - ANS-Disk diffusion test
Another term for the logarithmic growth of bacterial cells is - ANS-Exponential growth
Antibiotics that inhibit cell wall synthesis can be used at any time during the bacteria's
growth cycle. - ANS-False
Antimicrobials agents that mimic the chemical structure of DNA building blocks are
called: - ANS-Nucleotide analogs
Antoni van Leeuwenhoek was the first person to - ANS-View Protozoa and bacteria
Archael cell walls: - ANS-Contains specialized polysaccharides but does not contain
peptidoglycan
Aseptic means: - ANS-Free of all pathogens
Attenuation is a process that: - ANS-Decreases a pathogens virulence
_________ are serious secondary infections that result from the killing of the normal
microbiota. - ANS-Superinfections
A disease that occurs at a greater than normal frequency for a given area or population
is considered: - ANS-Epidemic
A disease that suddenly has a higher than normal incidence in a population is -
ANS-Epidemic
A flexible, spiral shapes bacterium is called a: - ANS-Spirochete
A housefly carrying microbes from garbage to food that humans will ingest is an
example of - ANS-A mechanical vector
A media that will only grow gram negative organisms would be classified as: -
ANS-Selective
A naked virus - ANS-Has no envelope
A negative stain leaves cells colorless while staining the background of the smear -
ANS-True
A patient can be infectious during which of these stages of disease? - ANS-Prodromal;
incubation; decline; convalescence
A patient has a STD characterized by sporadically recurring, painful fluid filled blisters.
What is the most likely diagnosis? - ANS-Genital herpes
A patient walks into the clinic with a sore that appears to be primary syphilis. This
disease is caused by a spirochete. To diagnose this disease we use a dye that attaches
to the exterior of the organism. What type of microscope will be used to confirm your
diagnosis? - ANS-Darkfield
A vaccine is available against which of the following? - ANS-Hepatitis A and B
All of the following are associated with different members of the genus Bacillus
EXCEPT - ANS-Tuberculosis
, All of the following are characteristics of an ideal antimicrobial agent EXCEPT: - ANS-It
denatures proteins
All of the following are nor am flora of the colon EXCEPT: - ANS-Campylobacter
All of the following are normal flora of the upper respiratory tract EXCEPT: -
ANS-Streptococcus pyogenes
All of the following could live in an atmosphere of 5% oxygen EXCEPT - ANS-Obligate
aerobes
All of the following improves resolving power EXCEPT - ANS-Using a red filter on the
condenser
All of these are transmitted by exposure to blood or body fluids EXCEPT: -
ANS-Hepatitis A
An aquatic microbe that can grow only at the surface of the water is probably which of
the following? - ANS-A phototroph
Another term for the Kirby-Bauer test is the: - ANS-Disk diffusion test
Another term for the logarithmic growth of bacterial cells is - ANS-Exponential growth
Antibiotics that inhibit cell wall synthesis can be used at any time during the bacteria's
growth cycle. - ANS-False
Antimicrobials agents that mimic the chemical structure of DNA building blocks are
called: - ANS-Nucleotide analogs
Antoni van Leeuwenhoek was the first person to - ANS-View Protozoa and bacteria
Archael cell walls: - ANS-Contains specialized polysaccharides but does not contain
peptidoglycan
Aseptic means: - ANS-Free of all pathogens
Attenuation is a process that: - ANS-Decreases a pathogens virulence
