VBS 2032: EXAM I QUESTIONS WITH COMPLETE
SOLUTIONS
3 domains Correct Answers bacteria
archaea
eukarya
3 mechanisms of horizontal gene transfer Correct Answers
transformation
conjugation
transduction
9 themes Correct Answers microbes are ubiquitous
essential for life
most live in biofilms
interaction is beneficial
developing infection based on 3 factors
chain can be broken
capable of rapid change
more microbial than human
A bacterial species was isolated from the middle of a compost
pile where the temperature was 55-65oC. The group that best
describes this microorganism would be:
A. Hyperthermophile
B. Mesophile
C. Thermophile
D. Psychrotroph
E. Psychrophile Correct Answers C
,A common environmental organism that may even grow in
certain chemical disinfectants is
A. Escherichia coli.
B. Streptococcus pneumoniae.
C. Pseudomonas aeruginosa.
D. enveloped virus. Correct Answers C
A research laboratory is investigating factors that would inhibit
the growth of Archaea. One question they have is if adding the
antibiotic penicillin would be effective in controlling growth.
What do you think the outcome would be if they tried this?
A. The penicillin wouldn't affect the Archaea because it prevents
crosslinking of peptidoglycan-Archaea don't have this
compound in their cell walls.
B. The penicillin will inhibit cell wall formation in the Archaea,
killing them.
C. The penicillin will slow down the growth of the Archaea by
damaging the cell wall, but they will still be able to grow
somewhat.
D. The penicillin will enhance the growth of the Archaea by
providing a rich nutrient source. Correct Answers A
A spherical bacterium would be called
A. bacillus
B. coccus
C. spirillum
D. vibrio Correct Answers B
A suffix used to describe a killing action would be
A. -static.
B. -cidal.
,C. -cillin.
D. -tion. Correct Answers B
A transducing phage Correct Answers contains a piece of
bacterial DNA
A transfusing phage Correct Answers contains a piece of
bacterial DNA
According to the Endosymbiotic Theory, what is the origin of
chloroplasts? Correct Answers double membrane, DNA
sequence similar of chromosomes is similar to cyanobacteria
According to the Endosymbiotic Theory, what is the origin of
mitochondria? Correct Answers double membrane, DNA
sequence of chromosomes is similar to Rickettsia, similar
ribosomes (70S)
Acellular infectious agents Correct Answers not composed of
cells
virus, viroid, prion
Acidophile Correct Answers grow in a pH < 5.5
Adenosine Triphosphate (ATP) Correct Answers energy
currency of cells
Aerotolerant Anaerobe Correct Answers best no O2
can deal wth O2
fermentation
anaerobic respiration
, Algae Correct Answers photosynthetic protist
single or multicellular
chloroplasts
flagella
Algae and Protozoa share the following characteristics
A. Both can be unicellular or multicellular
B. Both have cell walls
C. Both have nuclei
D. In the body, both are trophozoites Correct Answers B
Alpha Correct Answers some hemolysis
An antiviral drug that binds to a viral spike protein would
directly prevent
A. Budding
B. Protein Synthesis
C. Nucleic Acid Replication
D. Attachment
E. Host Cell Lysis Correct Answers D
Anabolism Correct Answers process that synthesizes and
assembles the subunits of macromolecules, using ATP
Antiseptic Correct Answers used on skin or body tissues, they
reduce the number of microbes
Archaea Correct Answers single celled
prokaryote
SOLUTIONS
3 domains Correct Answers bacteria
archaea
eukarya
3 mechanisms of horizontal gene transfer Correct Answers
transformation
conjugation
transduction
9 themes Correct Answers microbes are ubiquitous
essential for life
most live in biofilms
interaction is beneficial
developing infection based on 3 factors
chain can be broken
capable of rapid change
more microbial than human
A bacterial species was isolated from the middle of a compost
pile where the temperature was 55-65oC. The group that best
describes this microorganism would be:
A. Hyperthermophile
B. Mesophile
C. Thermophile
D. Psychrotroph
E. Psychrophile Correct Answers C
,A common environmental organism that may even grow in
certain chemical disinfectants is
A. Escherichia coli.
B. Streptococcus pneumoniae.
C. Pseudomonas aeruginosa.
D. enveloped virus. Correct Answers C
A research laboratory is investigating factors that would inhibit
the growth of Archaea. One question they have is if adding the
antibiotic penicillin would be effective in controlling growth.
What do you think the outcome would be if they tried this?
A. The penicillin wouldn't affect the Archaea because it prevents
crosslinking of peptidoglycan-Archaea don't have this
compound in their cell walls.
B. The penicillin will inhibit cell wall formation in the Archaea,
killing them.
C. The penicillin will slow down the growth of the Archaea by
damaging the cell wall, but they will still be able to grow
somewhat.
D. The penicillin will enhance the growth of the Archaea by
providing a rich nutrient source. Correct Answers A
A spherical bacterium would be called
A. bacillus
B. coccus
C. spirillum
D. vibrio Correct Answers B
A suffix used to describe a killing action would be
A. -static.
B. -cidal.
,C. -cillin.
D. -tion. Correct Answers B
A transducing phage Correct Answers contains a piece of
bacterial DNA
A transfusing phage Correct Answers contains a piece of
bacterial DNA
According to the Endosymbiotic Theory, what is the origin of
chloroplasts? Correct Answers double membrane, DNA
sequence similar of chromosomes is similar to cyanobacteria
According to the Endosymbiotic Theory, what is the origin of
mitochondria? Correct Answers double membrane, DNA
sequence of chromosomes is similar to Rickettsia, similar
ribosomes (70S)
Acellular infectious agents Correct Answers not composed of
cells
virus, viroid, prion
Acidophile Correct Answers grow in a pH < 5.5
Adenosine Triphosphate (ATP) Correct Answers energy
currency of cells
Aerotolerant Anaerobe Correct Answers best no O2
can deal wth O2
fermentation
anaerobic respiration
, Algae Correct Answers photosynthetic protist
single or multicellular
chloroplasts
flagella
Algae and Protozoa share the following characteristics
A. Both can be unicellular or multicellular
B. Both have cell walls
C. Both have nuclei
D. In the body, both are trophozoites Correct Answers B
Alpha Correct Answers some hemolysis
An antiviral drug that binds to a viral spike protein would
directly prevent
A. Budding
B. Protein Synthesis
C. Nucleic Acid Replication
D. Attachment
E. Host Cell Lysis Correct Answers D
Anabolism Correct Answers process that synthesizes and
assembles the subunits of macromolecules, using ATP
Antiseptic Correct Answers used on skin or body tissues, they
reduce the number of microbes
Archaea Correct Answers single celled
prokaryote
