BIOD 171 Module 6: Virology | Portage Learning Study Guide | Questions, Answers & Detailed Rationales

BIOD 171 x




Module 6: Virology | Portage Learning Study Guide |
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xQuestions, Answers & Detailed Rationales x x x x




THIS STUDY RESOURCE INCLUDES x x x




• BIOD 171 Module 6 practice questions
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• Questions and answers with detailed rationales
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• Viral structure and classification
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• Viral genomes and replication
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• Viral attachment, entry, and release
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• Virus life cycles
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• Lytic and lysogenic cycles
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• Viral transmission and pathogenesis
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• Viral diseases and clinical concepts
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• Host–virus interactions x



• Viral mutations and variation
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• Antiviral treatment principles
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• Viral prevention and control
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• Scenario-based virology questions x x



• Exam-focused review material x x

, BIOD 171 Module 6: Virology | Portage Learning
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Study Guide | Questions, Answers & Detailed
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Rationales
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1. Because the genome is contained within an enclosed space (much
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x like the nucleus of a cell), viruses are classified as eukaryotic.
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A) True
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B) False, because viruses are neither eukaryotic nor prokaryotic
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C) True, but only if they infect animals
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D) True, but only if they have an envelope
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Correct Answer: B x x




Rationale: Viruses are not classified as eukaryotic or prokaryotic; they are
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considered obligate intracellular parasites that lack cellular structure.
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2. What are the two basic components of a virus?
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A) Cell wall and nucleus
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B) Genomic material (DNA or RNA) and a capsid
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C) Envelope and spikes
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D) Ribosomes and mitochondria
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Correct Answer: B x x




Rationale: All viruses consist of genetic material (either DNA or RNA)
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surrounded by a protective protein coat called a capsid.
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, 3. The ______ surrounds the capsid of some viruses.
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A) Envelope
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B) Cell wall
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C) Plasma membrane
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D) Capsomere
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Correct Answer: A x x




Rationale: Some viruses have an additional lipid envelope that surrounds the
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capsid, typically derived from the host cell membrane.
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4. The envelope surrounds the ______ of some viruses.
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A) Genome
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B) Capsid
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C) Tail fibers
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D) Collar
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Correct Answer: B x x




Rationale: The envelope is an outer layer that encloses the capsid (which
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itself contains the viral genome).
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5. You would expect to see a viral envelope on a virus infecting a plant
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x cell.
A) True, because all viruses have envelopes
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B) False, because the majority of plant viruses are non-enveloped
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