Brock Biology of Microorganisms Chapter 8 Exam Questions With Correct Answers

Brock Biology of Microorganisms Chapter 8
Exam Questions With Correct Answers


1) Viral replication is
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A) independent of the host cell's DNA but dependent on the host cell's
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enzymes and metabolism.
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B) independent of both the host cell's DNA and the host cell's enzymes
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and metabolism.
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C) dependent on the host cell's DNA and RNA.
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D) dependent on the host cell's DNA, RNA, enzymes, and metabolism. -
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CORRECT ANSWER✔✔-A) independent of the host cell's DNA but
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dependent on the host cell's enzymes and metabolism.
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2) Viral replication occurs
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A) intracellularly.
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B) extracellularly.
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C) both intracellularly and extracellularly.
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D) either intracellularly or extracellularly, depending on the virus
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involved - CORRECT ANSWER✔✔-A) intracellularly.
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3) Viral size is generally measured in
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A) micrometers.
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,B) picometers.
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C) nanometers.
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D) centimeters. - CORRECT ANSWER✔✔-C) nanometers.
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4) Enveloped viral membranes are generally ________ with associated
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virus-specific ________. |




A) lipid bilayers / phospholipids
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B) protein bilayers / lipids
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C) lipid bilayers / glycoproteins
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D) glycolipid bilayers / phospholipids - CORRECT ANSWER✔✔-C) lipid
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bilayers / glycoproteins
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5) Which statement is TRUE?
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A) All viruses contain their own nucleic acid polymerases.
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B) Many viruses contain their own nucleic acid polymerases.
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C) Viruses do not contain their own nucleic acid polymerases.
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D) The origins of the nucleic acid polymerases used by viruses are
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eukaryotic. - CORRECT ANSWER✔✔-B) Many viruses contain their own
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nucleic acid polymerases.
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6) Reverse transcriptase is a(n)
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A) RNA-dependent DNA polymerase.
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, B) DNA-dependent DNA polymerase.
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C) RNA-dependent RNA polymerase.
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D) DNA-dependent RNA polymerase. - CORRECT ANSWER✔✔-A) RNA-
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dependent DNA polymerase.
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7) Viruses infecting ________ are typically the easiest to grow in the
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laboratory.
A) plants
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B) animals
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C) fungi
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D) prokaryotes - CORRECT ANSWER✔✔-D) prokaryotes
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8) ALL viral particles
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A) are metabolically inert.
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B) are smaller than bacterial cells.
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C) contain an envelope to prevent its degradation outside of a host.
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D) exhibit cell lysis under a particular condition. - CORRECT
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ANSWER✔✔-A) are metabolically inert.| | |




9) Cellular receptors may be composed of
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A) proteins.
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B) carbohydrates.
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