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microbiology final straighterline Exam Questions With 100%Verified AnswersA+GRADED
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microbiology final straighterline Exam Questions With 100%Verified AnswersA+GRADED phylogeny - correct answer...The study of evolutionary relationships among organisms is called ______. Last Universal Common Ancestor - correct answer...The three cell types discussed, eukaryotes, archaea, and ...

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  • August 6, 2024
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microbiology final straighterline Exam
Questions With 100%Verified
AnswersA+GRADED
phylogeny - correct answer...✔✔The study of evolutionary relationships among
organisms is called ______.

Last Universal Common Ancestor - correct answer...✔✔The three cell types discussed,
eukaryotes, archaea, and bacteria, all derived from ______.

always harmful to their host - correct answer...✔✔Organisms called parasites are
______.

Thermal hot springs warmed by heat from earth's interior - correct answer...✔✔Which
of the following does not indicate microbe involvement in energy and nutrient flow?

Electrons - correct answer...✔✔The subatomic particles that surround the nucleus are
the ______.

respiratory disease - correct answer...✔✔The number one worldwide infectious
diseases are ______.

saturated - correct answer...✔✔A fat is called _____ if all carbons of the fatty acid
chain are single-bonded to 2 other carbons and 2 hydrogens.

lipid - correct 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 - correct 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 - correct 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 - correct answer...✔✔Which type of microscope achieves the greatest
resolution and highest magnification?




A GRADESOLUTIONS

, a solid medium - correct 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 - correct answer...✔✔a spongiform encephalopathy of
humans

amphitrichous - correct answer...✔✔The term that refers to flagella at both poles of the
cell is ______.

saprobe - correct 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 - correct answer...✔✔During the Gram stain, the application of alcohol
results in the decolorization of ______ cells.

80s - correct 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. - correct
answer...✔✔Sterilizing filters have a pore size of 0.22 μm. Which of the following
statements is true?

icosahedral - correct 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 - correct answer...✔✔Amoebic dysentery is most commonly contracted
through

lysogeny - correct answer...✔✔the viral genome inserting into bacterial host
chromosome

envelope - correct answer...✔✔Which of the following is not associated with every
virus?

palisade - correct answer...✔✔When bacilli in a chain fold back upon each other like a
hinge, this cellular arrangement is termed a ______.

histones - correct answer...✔✔proteins associated with DNA in the nucleus.

tropisms - correct answer...✔✔Viral tissue specificities are called ______.

lophotrichous - correct answer...✔✔the term that refers to the presence of a tuft of
flagella emerging from a single site is ______.



A GRADESOLUTIONS

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