Straighterline Microbiology Final Exam 2024 Questions With 100% PASS Correct Answers BY SanihWISE
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Course
Microbiology Straighterline
Institution
Microbiology Straighterline
Straighterline Microbiology Final Exam 2024 Questions With 100% Correct Answers The study of evolutionary relationships among organisms is called ______. - answerphylogeny The three cell types discussed, eukaryotes, archaea, and bacteria, all derived from ______. - answerLast Universal Common Ances...
Straighterline Microbiology Final Exam
With 100% Correct And Verified Answers
2024-2026
The study of evolutionary relationships among organisms is called
______. - Correct Answer-phylogeny
The three cell types discussed, eukaryotes, archaea, and bacteria, all
derived from ______. - Correct Answer-Last Universal Common Ancestor
Organisms called parasites are ______. - Correct Answer-always harmful
A+
to their host
Which of the following does not indicate microbe involvement in
energy and nutrient flow? - Correct Answer-Thermal hot springs
warmed by heat from earth's interior
The subatomic particles that surround the nucleus are the ______. -
Correct Answer-Electrons
The number one worldwide infectious diseases are ______. - Correct
Answer-respiratory disease
PA
A fat is called _____ if all carbons of the fatty acid chain are single-
bonded to 2 other carbons and 2 hydrogens. - Correct Answer-
saturated
SS
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 Answer-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 Answer-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 Answer-cell size of 0.5 to 2 microns
Which type of microscope achieves the greatest resolution and highest
magnification? - Correct Answer-electron
Which of the following is produced by adding 1% to 5% agar to nutrient
broth that is then boiled and cooled? - Correct Answer-a solid medium
A+
a spongiform encephalopathy of humans - Correct Answer-Creutzfeldt-
Jacob disease
The term that refers to flagella at both poles of the cell is ______. -
Correct Answer-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
Answer-saprobe
PA
During the Gram stain, the application of alcohol results in the
decolorization of ______ cells. - Correct Answer-gram-negative
The size of a eukaryotic ribosome is ______ - Correct Answer-80s
SS
Sterilizing filters have a pore size of 0.22 μm. Which of the following
statements is true? - Correct Answer-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
Answer-icosahedral
Amoebic dysentery is most commonly contracted through - Correct
Answer-fecal oral
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