microbiology final straighterline, final exam
straighterline microbiology ACTUAL
QUESTIONS AND CORRECT ANSWERS
The study of evolutionary relationships among organisms is called ______. - CORRECT
ANSWERS✅✅phylogeny
The three cell types discussed, eukaryotes, archaea, and bacteria, all derived from ______. -
CORRECT ANSWERS✅✅Last Universal Common Ancestor
Organisms called parasites are ______. - CORRECT ANSWERS✅✅always harmful to their
host
Which of the following does not indicate microbe involvement in energy and nutrient flow? -
CORRECT ANSWERS✅✅Thermal hot springs warmed by heat from earth's interior
The subatomic particles that surround the nucleus are the ______. - CORRECT
ANSWERS✅✅Electrons
The number one worldwide infectious diseases are ______. - CORRECT
ANSWERS✅✅respiratory disease
A fat is called _____ if all carbons of the fatty acid chain are single-bonded to 2 other carbons
and 2 hydrogens. - CORRECT ANSWERS✅✅saturated
One technique for staining bacteria for viewing under the microscope is called the Gram
stain. In this technique, alcohol is used as a decolorizer because it degrades the outer
membrane found in some bacteria. What chemical component of the cell does alcohol affect?
- CORRECT ANSWERS✅✅lipid
If a microbiologist is studying a specimen at a total magnification of 950X, what is the
magnifying power of the objective lens if the ocular lens is 10X? - CORRECT
ANSWERS✅✅95X
,NASA has published a list of criteria for identifying fossil bacteria in samples from Mars, as
part of a search for evidence of life. Which of the following is good evidence for the presence
of bacterial cells? - CORRECT ANSWERS✅✅cell size of 0.5 to 2 microns
Which type of microscope achieves the greatest resolution and highest magnification? -
CORRECT ANSWERS✅✅electron
Which of the following is produced by adding 1% to 5% agar to nutrient broth that is then
boiled and cooled? - CORRECT ANSWERS✅✅a solid medium
a spongiform encephalopathy of humans - CORRECT ANSWERS✅✅Creutzfeldt-Jacob
disease
The term that refers to flagella at both poles of the cell is ______. - CORRECT
ANSWERS✅✅amphitrichous
In the condition called athlete's foot, the fungus Trichophyton consumes the keratin protein
found in hair, nails, and dead skin. Which of the following descriptors does not apply to
Trichophyton? - CORRECT ANSWERS✅✅saprobe
During the Gram stain, the application of alcohol results in the decolorization of ______
cells. - CORRECT ANSWERS✅✅gram-negative
The size of a eukaryotic ribosome is ______ - CORRECT ANSWERS✅✅80s
Sterilizing filters have a pore size of 0.22 μm. Which of the following statements is true? -
CORRECT ANSWERS✅✅Bacterial cells are typically between 1-10 μm and are blocked
by the filter, whereas most viruses are between 20 and 200 nm and therefore pass through.
One of the principal viral capsid shapes is a 20-sided figure with 12 evenly spaced corners
referred to as a/an _____ capsid. - CORRECT ANSWERS✅✅icosahedral
,Amoebic dysentery is most commonly contracted through - CORRECT
ANSWERS✅✅fecal oral
the viral genome inserting into bacterial host chromosome - CORRECT
ANSWERS✅✅lysogeny
Which of the following is not associated with every virus? - CORRECT
ANSWERS✅✅envelope
When bacilli in a chain fold back upon each other like a hinge, this cellular arrangement is
termed a ______. - CORRECT ANSWERS✅✅palisade
proteins associated with DNA in the nucleus. - CORRECT ANSWERS✅✅histones
Viral tissue specificities are called ______. - CORRECT ANSWERS✅✅tropisms
the term that refers to the presence of a tuft of flagella emerging from a single site is ______.
- CORRECT ANSWERS✅✅lophotrichous
E. coli bacteria normally live in the human gut and produce vitamin K that the body uses.
This is best termed a ______ relationship. - CORRECT ANSWERS✅✅mutualistic
Termites are insects that require the protozoan Trichonympha in their gut to synthesize the
enzyme cellulase to degrade the cellulose in wood. The protozoan uses the end products of
the cellulose breakdown (glucose). This is a(n) ______ relationship. - CORRECT
ANSWERS✅✅mutualistic
The phase of the bacterial growth curve in which newly inoculated cells are adjusting to their
new environment, metabolizing but not growing at an exponential rate, is the ______. -
CORRECT ANSWERS✅✅lag phase
The cell wall will help prevent the cell from bursting in ______ conditions. - CORRECT
ANSWERS✅✅hypotonic
, This microbe is photosynthetic, but in the absence of light it can use organic compounds as
an energy source. Its carbon source is an organic compound. The appropriate classification
for this organism would be ______. - CORRECT ANSWERS✅✅photoheterotroph
A microorganism that has an optimum growth temperature of 37°C, but can survive short
exposure to high temperatures is called a(n) ______. - CORRECT
ANSWERS✅✅thermoduric microbe
the end product binding to enzyme in noncompetitive site - CORRECT
ANSWERS✅✅Noncompetitive inhibition
Ribozymes are ______. - CORRECT ANSWERS✅✅catalysts for RNA splicing
Most electron carriers are ______. - CORRECT ANSWERS✅✅coenzymes
what is the usual net production of ATP? - CORRECT ANSWERS✅✅2
Exergonic reactions occur during - CORRECT ANSWERS✅✅aerobic cellular respiration
Each nucleotide is composed of - CORRECT ANSWERS✅✅one phosphate, one
nitrogenous base, and one sugar
A frameshift is caused by ______ mutations. - CORRECT ANSWERS✅✅deletion and
insertion
The fields of genomics and proteomics differ in that - CORRECT ANSWERS✅✅genomics
refers to the study of an organism's entire genome, whereas proteomics is the study of
expressed proteins
endosymbiotic theory - CORRECT ANSWERS✅✅eukaryotes
straighterline microbiology ACTUAL
QUESTIONS AND CORRECT ANSWERS
The study of evolutionary relationships among organisms is called ______. - CORRECT
ANSWERS✅✅phylogeny
The three cell types discussed, eukaryotes, archaea, and bacteria, all derived from ______. -
CORRECT ANSWERS✅✅Last Universal Common Ancestor
Organisms called parasites are ______. - CORRECT ANSWERS✅✅always harmful to their
host
Which of the following does not indicate microbe involvement in energy and nutrient flow? -
CORRECT ANSWERS✅✅Thermal hot springs warmed by heat from earth's interior
The subatomic particles that surround the nucleus are the ______. - CORRECT
ANSWERS✅✅Electrons
The number one worldwide infectious diseases are ______. - CORRECT
ANSWERS✅✅respiratory disease
A fat is called _____ if all carbons of the fatty acid chain are single-bonded to 2 other carbons
and 2 hydrogens. - CORRECT ANSWERS✅✅saturated
One technique for staining bacteria for viewing under the microscope is called the Gram
stain. In this technique, alcohol is used as a decolorizer because it degrades the outer
membrane found in some bacteria. What chemical component of the cell does alcohol affect?
- CORRECT ANSWERS✅✅lipid
If a microbiologist is studying a specimen at a total magnification of 950X, what is the
magnifying power of the objective lens if the ocular lens is 10X? - CORRECT
ANSWERS✅✅95X
,NASA has published a list of criteria for identifying fossil bacteria in samples from Mars, as
part of a search for evidence of life. Which of the following is good evidence for the presence
of bacterial cells? - CORRECT ANSWERS✅✅cell size of 0.5 to 2 microns
Which type of microscope achieves the greatest resolution and highest magnification? -
CORRECT ANSWERS✅✅electron
Which of the following is produced by adding 1% to 5% agar to nutrient broth that is then
boiled and cooled? - CORRECT ANSWERS✅✅a solid medium
a spongiform encephalopathy of humans - CORRECT ANSWERS✅✅Creutzfeldt-Jacob
disease
The term that refers to flagella at both poles of the cell is ______. - CORRECT
ANSWERS✅✅amphitrichous
In the condition called athlete's foot, the fungus Trichophyton consumes the keratin protein
found in hair, nails, and dead skin. Which of the following descriptors does not apply to
Trichophyton? - CORRECT ANSWERS✅✅saprobe
During the Gram stain, the application of alcohol results in the decolorization of ______
cells. - CORRECT ANSWERS✅✅gram-negative
The size of a eukaryotic ribosome is ______ - CORRECT ANSWERS✅✅80s
Sterilizing filters have a pore size of 0.22 μm. Which of the following statements is true? -
CORRECT ANSWERS✅✅Bacterial cells are typically between 1-10 μm and are blocked
by the filter, whereas most viruses are between 20 and 200 nm and therefore pass through.
One of the principal viral capsid shapes is a 20-sided figure with 12 evenly spaced corners
referred to as a/an _____ capsid. - CORRECT ANSWERS✅✅icosahedral
,Amoebic dysentery is most commonly contracted through - CORRECT
ANSWERS✅✅fecal oral
the viral genome inserting into bacterial host chromosome - CORRECT
ANSWERS✅✅lysogeny
Which of the following is not associated with every virus? - CORRECT
ANSWERS✅✅envelope
When bacilli in a chain fold back upon each other like a hinge, this cellular arrangement is
termed a ______. - CORRECT ANSWERS✅✅palisade
proteins associated with DNA in the nucleus. - CORRECT ANSWERS✅✅histones
Viral tissue specificities are called ______. - CORRECT ANSWERS✅✅tropisms
the term that refers to the presence of a tuft of flagella emerging from a single site is ______.
- CORRECT ANSWERS✅✅lophotrichous
E. coli bacteria normally live in the human gut and produce vitamin K that the body uses.
This is best termed a ______ relationship. - CORRECT ANSWERS✅✅mutualistic
Termites are insects that require the protozoan Trichonympha in their gut to synthesize the
enzyme cellulase to degrade the cellulose in wood. The protozoan uses the end products of
the cellulose breakdown (glucose). This is a(n) ______ relationship. - CORRECT
ANSWERS✅✅mutualistic
The phase of the bacterial growth curve in which newly inoculated cells are adjusting to their
new environment, metabolizing but not growing at an exponential rate, is the ______. -
CORRECT ANSWERS✅✅lag phase
The cell wall will help prevent the cell from bursting in ______ conditions. - CORRECT
ANSWERS✅✅hypotonic
, This microbe is photosynthetic, but in the absence of light it can use organic compounds as
an energy source. Its carbon source is an organic compound. The appropriate classification
for this organism would be ______. - CORRECT ANSWERS✅✅photoheterotroph
A microorganism that has an optimum growth temperature of 37°C, but can survive short
exposure to high temperatures is called a(n) ______. - CORRECT
ANSWERS✅✅thermoduric microbe
the end product binding to enzyme in noncompetitive site - CORRECT
ANSWERS✅✅Noncompetitive inhibition
Ribozymes are ______. - CORRECT ANSWERS✅✅catalysts for RNA splicing
Most electron carriers are ______. - CORRECT ANSWERS✅✅coenzymes
what is the usual net production of ATP? - CORRECT ANSWERS✅✅2
Exergonic reactions occur during - CORRECT ANSWERS✅✅aerobic cellular respiration
Each nucleotide is composed of - CORRECT ANSWERS✅✅one phosphate, one
nitrogenous base, and one sugar
A frameshift is caused by ______ mutations. - CORRECT ANSWERS✅✅deletion and
insertion
The fields of genomics and proteomics differ in that - CORRECT ANSWERS✅✅genomics
refers to the study of an organism's entire genome, whereas proteomics is the study of
expressed proteins
endosymbiotic theory - CORRECT ANSWERS✅✅eukaryotes
