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Microbiology Final Straighterline Questions And Answers With Verified Solutions 100% Correct!!!
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Microbiology Final Straighterline Questions And Answers With Verified Solutions 100% Correct!!!
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Microbiology Final StraighterlineQuestions And Answers With Verified
Solutions 100% Correct!!!
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 ______.
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.
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