microbiology final straighterline, final exam straighterline microbiology exam with 100% correct answers 2024
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Module
Straighterline67
Institution
Straighterline67
phylogeny correct answers The study of evolutionary relationships among organisms is called ______.
Last Universal Common Ancestor correct answers The three cell types discussed, eukaryotes, archaea, and bacteria, all derived from ______.
always harmful to their host correct answers Organi...
microbiology final straighterline, final
exam straighterline microbiology
phylogeny correct answers The study of evolutionary relationships among
organisms is.
called
Last Universal Common Ancestor correct answers The three cell types
discussed,
eukaryotes, archaea, and bacteria, all derived from
.always harmful to their host correct answers Organisms called parasites
are
.Thermal hot springs warmed by heat from earth's interior correct answers
Which of the
following does not indicate microbe involvement in energy and
nutrient flow?
Electrons correct answers The subatomic particles that surround the
nucleus. are the
respiratory disease correct answers The number one worldwide infectious
diseases
. are
saturated correct answers A fat is called if all carbons of the fatty acid
chain are
single-bonded to 2 other carbons and 2
hydrogens.
lipid correct answers One technique for staining bacteria for viewing
under the is called the Gram stain. In this technique, alcohol is used as a
microscope
decolorizer
because it degrades the outer membrane found in some bacteria. What
chemical
component of the cell does alcohol
affect?
95X correct answers 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?
cell size of 0.5 to 2 microns correct answers NASA has published a list of
criteria for fossil bacteria in samples from Mars, as part of a search for
identifying
evidence
Which of the
of life.
following is good evidence for the presence of
bacterial cells?
electron correct answers Which type of microscope achieves the greatest
resolution
and highest
magnification?
a solid medium correct answers Which of the following is produced by adding
1% toto5%
agar nutrient broth that is then boiled and
cooled?
Creutzfeldt-Jacob disease correct answers a spongiform encephalopathy
of humans
,amphitrichous correct answers The term that refers to flagella at both
poles of the
is . cell
saprobe correct answers 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?
gram-negative correct answers During the Gram stain, the application of
alcohol
in results
the decolorization of
cells.
80s correct answers The size of a eukaryotic ribosome is
Bacterial cells are typically between 1-10 μm and are blocked by the
filter, viruses
most whereasare between 20 and 200 nm and therefore pass through.
correct answers
Sterilizing filters have a pore size of 0.22 μm. Which of the following
statements is true?
icosahedral correct answers One of the principal viral capsid shapes is a
20-sided
figure with 12 evenly spaced corners referred to as a/an
capsid.
fecal oral correct answers Amoebic dysentery is most commonly
contracted through
lysogeny correct answers the viral genome inserting into bacterial host
chromosome
envelope correct answers Which of the following is not associated with
every virus?
palisade correct answers When bacilli in a chain fold back upon each other
like a
this hinge, arrangement is termed a
cellular
.
histones correct answers proteins associated with DNA in the
nucleus.
tropisms correct answers Viral tissue specificities are called
.lophotrichous correct answers the term that refers to the presence of a
tuft of flagella
emerging from a single site is
.
mutualistic correct answers E. coli bacteria normally live in the human gut
and produce
vitamin K that the body uses. This is best termed a
relationship.
mutualistic correct answers Termites are insects that require the
protozoan
Trichonympha in their gut to synthesize the enzyme cellulase to degrade the
cellulose
wood. Theinprotozoan uses the end products of the cellulose breakdown
(glucose).
is a(n) This
relationship.
lag phase correct answers The phase of the bacterial growth curve in
which newly
inoculated cells are adjusting to their new environment, metabolizing but
notexponential
an growing at rate, is the
.
, hypotonic correct answers The cell wall will help prevent the cell from
bursting in
conditions.
photoheterotroph correct answers 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 .
thermoduric microbe correct answers A microorganism that has an
optimum growth
temperature of 37°C, but can survive short exposure to high temperatures is
called a(n)
.
Noncompetitive inhibition correct answers the end product binding to
enzyme in
noncompetitive
site
catalysts for RNA splicing correct answers Ribozymes are
.coenzymes correct answers Most electron carriers are
.2 correct answers what is the usual net production
of ATP?
aerobic cellular respiration correct answers Exergonic reactions
occur during
one phosphate, one nitrogenous base, and one sugar correct answers Each
nucleotide
is composed
of
deletion and insertion correct answers A frameshift is caused by
mutations.
genomics refers to the study of an organism's entire genome, whereas
proteomics
study is the proteins correct answers The fields of genomics and
of expressed
differ in
proteomics
that
eukaryotes correct answers endosymbiotic
theory
adenine-thymine correct answers Replication of DNA begins at a/an rich
area.
capsid correct answers A/an is the protein shell around the nucleic acid
core of a
viru
s.
hyphae correct answers The long, thread-like branching cells of molds
are called
.
the electron transport system correct answers in which stage of aerobic
respiration is
water
produced?
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