Medical Virology Basics Quiz

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Questions and Answers

What is a virus composed of?

  • Nucleic acid + Protein coat (correct)
  • Lipids + Carbohydrates
  • Nucleic acid + Lipids
  • Protein + Carbohydrates

What is a virion?

  • The genetic material of a virus
  • The protein shell of a virus
  • The structure that attaches to host cells
  • The complete infectious unit of a virus (correct)

What is the function of the capsid in a virus?

  • Facilitates viral replication
  • Protects the viral nucleic acid and aids in attachment to host cells (correct)
  • Serves as a storage unit for viral proteins
  • Helps in the transmission of the virus through air

Which cells can viruses infect?

<p>Humans, animals, plants, bacteria, and archaea (D)</p> Signup and view all the answers

What is the role of virions in initiating infection?

<p>Attach to susceptible host cells to initiate the infection process (D)</p> Signup and view all the answers

Flashcards

Virus Composition

Nucleic acid core surrounded by a protein coat.

What is a Virion?

A fully assembled, infectious virus particle.

Capsid Function

Protects viral nucleic acid; aids in host cell attachment.

Cells Viruses Infect

Humans, animals, plants, bacteria, and archaea.

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Virion's Role in Infection

Attach to susceptible host cells to begin the infection.

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Study Notes

Virus Composition

  • A virus is composed of genetic material (either DNA or RNA) surrounded by a protein coat called the capsid.

Virion

  • A virion is a complete, fully assembled virus particle that is capable of infecting a host cell.

Capsid Function

  • The capsid provides protection to the viral genetic material and helps the virus to attach to and enter the host cell.

Host Cells

  • Viruses can infect a wide range of cells, including animal cells, plant cells, and bacteria.

Role of Virions

  • Virions play a crucial role in initiating infection by attaching to and entering host cells, releasing their genetic material, and starting the replication process.

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