Viruses and Virions Quiz
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Questions and Answers

Which of the following is true about viruses?

  • Viruses cause most diseases in the industrialized world (correct)
  • Viruses are made up of cells
  • Viruses can grow and self-reproduce
  • Viruses have a cytoplasmic membrane and organelles

Which of the following is true about virions?

  • Virions are made up of DNA and protein
  • Virions are made up of RNA and protein (correct)
  • Virions have a cytoplasmic membrane and organelles
  • Virions can grow and self-reproduce

Which of the following is true about viroids?

  • Viroids cause diseases in animals
  • Viroids can grow and self-reproduce
  • Viroids are made up of circular fragments of RNA (correct)
  • Viroids are made up of cells

Which of the following is true about viruses and viroids?

<p>Both viruses and viroids are acellular organisms (B)</p> Signup and view all the answers

Which of the following is true about the structure of viruses?

<p>Viruses are composed of nucleic acid and protein (D)</p> Signup and view all the answers

Study Notes

Viruses

  • Viruses are infectious agents that replicate inside the cells of an organism
  • They are composed of genetic material (DNA or RNA) surrounded by a protein coat
  • Viruses can infect all types of life forms, including animals, plants, and bacteria

Virions

  • A virion is a complete, infectious virus particle
  • It consists of the viral genome and the protein coat that surrounds it
  • Virions are capable of surviving outside of a host cell for a period of time

Viroids

  • Viroids are small, single-stranded RNA molecules that infect plants
  • They are the smallest known infectious agents, consisting of only a few hundred nucleotides
  • Viroids do not have a protein coat and are not considered to be living organisms

Viruses and Viroids

  • Both viruses and viroids are infectious agents that replicate inside host cells
  • They are both composed of genetic material, but viruses have a protein coat while viroids do not
  • Both can cause disease in infected organisms

Structure of Viruses

  • The structure of a virus consists of the viral genome and the protein coat
  • The protein coat is made up of repeating units of protein called capsomeres
  • The shape of a virus can be helical, spherical, or complex, and is determined by the arrangement of the capsomeres

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Description

Test your knowledge on viruses and virions with this quiz! Learn about the definition of viruses and virions, as well as the different parts of a virion. Explore their extracellular and intracellular states, their role in causing diseases, and their specificity to host organisms. Challenge yourself and expand your understanding of these infectious agents!

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