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 Organi...
Microbiology final straightenerline
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?
, Microbiology final straightenerline
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 ______.
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