BMS (questions and answers) graded A+
already passed-16.docx
Dr. Strummer has discovered a new ovoid (oval-shaped) microorganism that
is 1um in diameter. The organism's genome is a single circular chromosome.
The new microorganism is: - ANSWERa bacteria
Which of the following is the correct way of writing the genus and species
name of a bacteria: - ANSWEREscherichia coli (italics)
When examining the evolution of life on Earth, scientists find that at the
genetic level eukaryotes are more similar to organisms in the kingdom
_______ than organisms in the kingdom ________. - ANSWERArchaea,
Bacteria
Pasteur's Experiments with Swan Neck Flasks disproved which of the
following theories on the origin of microorganisms: - ANSWERSpontaneous
Generation
Which of the following activities is NOT an activity observed in living cells? -
ANSWERAll cells communicate with other cells.
The correct ones:
All cells grow.
All cells metabolize.
,all cells evolve
Dr. Strummer is examining a new microorganism isolated from the
permafrost of Siberia. Transmission electron micrographs show a unicellular
organism 100um in diameter. The organism appears to have a nucleus,
membrane bound organelles, and a cell wall. What would you predict is the
main chemical component of this organism's cell wall? - ANSWERcellulose or
chitin
The germ theory of disease refers to: - ANSWERthe theory that some human
diseases are caused by microorganisms that have gained access to the human
body.
_____________ refers to the evolutionary relationships between organisms
deduced through the comparison of their genetic material. -
ANSWERPhylogeny
Uncle Billy Bob is nervous. Three of his prize winning roosters, Huey, Dewey,
and Louie, at Billy Bob's Ranch for Interesting Chickens have developed sores
on their beaks consistent with a condition called beak rot. Dr. Strummer visits
the ranch, takes samples from the sores of the three diseased chickens, and
brings the samples back to his research lab. He isolates bacteria from the
each sample (Huey, Dewey, and Louie) and grows them in three SEPARATE
culture tubes. He then injects aliquots (small portions) of each diluted culture
into the backs of 5 healthy laboratory chickens that are sterile and lack any
disease immunity. After 3 days the laboratory chickens injected with bacteria
cultured from the samples of Huey and Dewey have sores on their beaks
similar to those observed in Huey and Dewey. Chickens injected with bacteria
cultured from the samples of Louie are perfectly healthy.Is the cause of
Huey's beak rot - ANSWERYes, because bacteria isolated from Huey's sore
sample were able to cause sores in laboratory chickens consistent with Koch's
3rd postulate.
,Which of the following outcomes of a human encounter with a
microorganism is NOTtrue? - ANSWERThe colonizing microorganism will
always cause disease in the human.
True:
The human may be permanently colonized with the microorganism.
The human may be transiently colonized with the microorganism.
The colonizing microorganism may cause disease in the human.
The genome of COVID-19 is composed of: - ANSWERsingle stranded RNA
A ________ is smaller than a _______ which, in turn, is smaller than a
________. - ANSWERvirus, bacteria, human cell
The capsid of COVID-19 has ___________ symmetry and functions to
_________________. - ANSWERhelical, protect the viral genome
COVID-19 replicates in cells found in the - ANSWERupper and lower
respiratory tract
Which of the following is NOT a clinical diagnostic test utilized for diagnosis of
COVID-19 patients? - ANSWERViral Culture and Enumeration Test
____________ is defined as the smallest distance by which two objects can
be separated and still be distinguished. - ANSWERresolution
, Compared to Eukaryotes, Bacteria and Archaea have ________ surface-area-
to-volume ratios, causing ________ nutrient exchange and growth rates. -
ANSWERhigher, faster
Rod shaped bacteria arranged in chains are referred to as: -
ANSWERStreptobacilli
True or False: Cell morphology can be used to predict the physiology, ecology,
and phylogeny of a prokaryotic cell. - ANSWERFalse
Dr. Strummer would like to use microscopy to observe the chemotaxis of the
living Escherichia coli cells. Which microscopy technique would be most
appropriate? - ANSWERBright-field Microscopy of an unstained sample.
Which of the following statements is NOT true about the use of staining in
microscopy? - ANSWERStaining is used to to increase the resolving power of a
microscope.
Which of the following is TRUE about gram-positive bacteria? -
ANSWERGram-positive bacteria have a thick peptidoglycan cell wall that
includes Lipotechoic acids (LTA).
False:
The inner membrane of gram-positive bacteria contains lipopolysaccharide
(LPS).
Gram-positive bacteria have an inner membrane and an outer membrane.
Gram-positive bacteria stain pink when Gram stained.
already passed-16.docx
Dr. Strummer has discovered a new ovoid (oval-shaped) microorganism that
is 1um in diameter. The organism's genome is a single circular chromosome.
The new microorganism is: - ANSWERa bacteria
Which of the following is the correct way of writing the genus and species
name of a bacteria: - ANSWEREscherichia coli (italics)
When examining the evolution of life on Earth, scientists find that at the
genetic level eukaryotes are more similar to organisms in the kingdom
_______ than organisms in the kingdom ________. - ANSWERArchaea,
Bacteria
Pasteur's Experiments with Swan Neck Flasks disproved which of the
following theories on the origin of microorganisms: - ANSWERSpontaneous
Generation
Which of the following activities is NOT an activity observed in living cells? -
ANSWERAll cells communicate with other cells.
The correct ones:
All cells grow.
All cells metabolize.
,all cells evolve
Dr. Strummer is examining a new microorganism isolated from the
permafrost of Siberia. Transmission electron micrographs show a unicellular
organism 100um in diameter. The organism appears to have a nucleus,
membrane bound organelles, and a cell wall. What would you predict is the
main chemical component of this organism's cell wall? - ANSWERcellulose or
chitin
The germ theory of disease refers to: - ANSWERthe theory that some human
diseases are caused by microorganisms that have gained access to the human
body.
_____________ refers to the evolutionary relationships between organisms
deduced through the comparison of their genetic material. -
ANSWERPhylogeny
Uncle Billy Bob is nervous. Three of his prize winning roosters, Huey, Dewey,
and Louie, at Billy Bob's Ranch for Interesting Chickens have developed sores
on their beaks consistent with a condition called beak rot. Dr. Strummer visits
the ranch, takes samples from the sores of the three diseased chickens, and
brings the samples back to his research lab. He isolates bacteria from the
each sample (Huey, Dewey, and Louie) and grows them in three SEPARATE
culture tubes. He then injects aliquots (small portions) of each diluted culture
into the backs of 5 healthy laboratory chickens that are sterile and lack any
disease immunity. After 3 days the laboratory chickens injected with bacteria
cultured from the samples of Huey and Dewey have sores on their beaks
similar to those observed in Huey and Dewey. Chickens injected with bacteria
cultured from the samples of Louie are perfectly healthy.Is the cause of
Huey's beak rot - ANSWERYes, because bacteria isolated from Huey's sore
sample were able to cause sores in laboratory chickens consistent with Koch's
3rd postulate.
,Which of the following outcomes of a human encounter with a
microorganism is NOTtrue? - ANSWERThe colonizing microorganism will
always cause disease in the human.
True:
The human may be permanently colonized with the microorganism.
The human may be transiently colonized with the microorganism.
The colonizing microorganism may cause disease in the human.
The genome of COVID-19 is composed of: - ANSWERsingle stranded RNA
A ________ is smaller than a _______ which, in turn, is smaller than a
________. - ANSWERvirus, bacteria, human cell
The capsid of COVID-19 has ___________ symmetry and functions to
_________________. - ANSWERhelical, protect the viral genome
COVID-19 replicates in cells found in the - ANSWERupper and lower
respiratory tract
Which of the following is NOT a clinical diagnostic test utilized for diagnosis of
COVID-19 patients? - ANSWERViral Culture and Enumeration Test
____________ is defined as the smallest distance by which two objects can
be separated and still be distinguished. - ANSWERresolution
, Compared to Eukaryotes, Bacteria and Archaea have ________ surface-area-
to-volume ratios, causing ________ nutrient exchange and growth rates. -
ANSWERhigher, faster
Rod shaped bacteria arranged in chains are referred to as: -
ANSWERStreptobacilli
True or False: Cell morphology can be used to predict the physiology, ecology,
and phylogeny of a prokaryotic cell. - ANSWERFalse
Dr. Strummer would like to use microscopy to observe the chemotaxis of the
living Escherichia coli cells. Which microscopy technique would be most
appropriate? - ANSWERBright-field Microscopy of an unstained sample.
Which of the following statements is NOT true about the use of staining in
microscopy? - ANSWERStaining is used to to increase the resolving power of a
microscope.
Which of the following is TRUE about gram-positive bacteria? -
ANSWERGram-positive bacteria have a thick peptidoglycan cell wall that
includes Lipotechoic acids (LTA).
False:
The inner membrane of gram-positive bacteria contains lipopolysaccharide
(LPS).
Gram-positive bacteria have an inner membrane and an outer membrane.
Gram-positive bacteria stain pink when Gram stained.
