microbiology straighterline Final Exam 2024
phylogeny - ANSWER The study of evolutionary relationships among organisms is
called .
Last Universal Common Ancestor - ANSWER The three cell types discussed,
eukaryotes, archaea, and bacteria, all derived from .
always harmful to their host - ANSWER...
Microbiology straighterline final exam with complete solutions 2024
microbiology straighterline Final Exam 2024
phylogeny - ANSWER The study of evolutionary relationships among organisms is
called .
Last Universal Common Ancestor - ANSWER The three cell types discussed,
eukaryotes, archaea, and bacteria, all derived from .
always harmful to their host - ANSWER Organisms called parasites are .
Thermal hot springs warmed by heat from earth's interior - ANSWER Which of the
following does not indicate microbe involvement in energy and nutrient flow?
Electrons - ANSWER The subatomic particles that surround the nucleus are the
.
respiratory disease - ANSWER The number one worldwide infectious diseases are
.
saturated - ANSWER A fat is called if all carbons of the fatty acid chain are
single-bonded to 2 other carbons and 2 hydrogens.
lipid - ANSWER 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?
95X - ANSWER 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 - ANSWER 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?
electron - ANSWER Which type of microscope achieves the greatest resolution and
highest magnification?
a solid medium - ANSWER Which of the following is produced by adding 1% to 5%
agar to nutrient broth that is then boiled and cooled?
Creutzfeldt-Jacob disease - ANSWER a spongiform encephalopathy of humans
amphitrichous - ANSWER The term that refers to flagella at both poles of the cell is
.
Microbiology straighterline final exam with complete solutions 2024
,Microbiology straighterline final exam with complete solutions 2024
saprobe - ANSWER 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 - ANSWER During the Gram stain, the application of alcohol results in
the decolorization of cells.
80s - ANSWER The size of a eukaryotic ribosome is
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. - ANSWER Sterilizing
filters have a pore size of 0.22 μm. Which of the following statements is true?
icosahedral - ANSWER 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 - ANSWER Amoebic dysentery is most commonly contracted through
lysogeny - ANSWER the viral genome inserting into bacterial host chromosome
envelope - ANSWER Which of the following is not associated with every virus?
palisade - ANSWER When bacilli in a chain fold back upon each other like a hinge, this
cellular arrangement is termed a .
histones - ANSWER proteins associated with DNA in the nucleus.
tropisms - ANSWER Viral tissue specificities are called .
lophotrichous - ANSWER the term that refers to the presence of a tuft of flagella
emerging from a single site is .
mutualistic - ANSWER E. coli bacteria normally live in the human gut and produce
vitamin K that the body uses. This is best termed a relationship.
mutualistic - ANSWER 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.
lag phase - ANSWER 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 .
hypotonic - ANSWER The cell wall will help prevent the cell from bursting in
conditions.
Microbiology straighterline final exam with complete solutions 2024
, Microbiology straighterline final exam with complete solutions 2024
photoheterotroph - ANSWER 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 - ANSWER 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 - ANSWER the end product binding to enzyme in
noncompetitive site
catalysts for RNA splicing - ANSWER Ribozymes are .
coenzymes - ANSWER Most electron carriers are .
2 - ANSWER what is the usual net production of ATP?
aerobic cellular respiration - ANSWER Exergonic reactions occur during
one phosphate, one nitrogenous base, and one sugar - ANSWER Each nucleotide is
composed of
deletion and insertion - ANSWER A frameshift is caused by mutations.
genomics refers to the study of an organism's entire genome, whereas proteomics is the
study of expressed proteins - ANSWER The fields of genomics and proteomics differ in
that
eukaryotes - ANSWER endosymbiotic theory
adenine-thymine - ANSWER Replication of DNA begins at a/an rich area.
capsid - ANSWER A/an is the protein shell around the nucleic acid core of a
virus.
hyphae - ANSWER The long, thread-like branching cells of molds are called .
the electron transport system - ANSWER in which stage of aerobic respiration is water
Microbiology straighterline final exam with complete solutions 2024
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