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Acellular Infectious Agents: Viruses, Viroids & Prions quiz #4

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  • Bacteria, viruses, parasites, and fungi are considered which type of hazard?


    They are considered biological hazards.

  • What needs a host to survive?


    Viruses, viroids, and prions need a host to survive and replicate.

  • What eventually stops the spread of the virus in the host?


    The host's immune response eventually stops the spread of the virus.

  • What is the structural difference between a viroid and a virus?


    A viroid consists of a single short strand of circular RNA, while a virus contains either DNA or RNA enclosed in a protein coat and sometimes a lipid envelope.

  • How do prions cause disease in the host organism?


    Prions cause disease by inducing normal proteins to misfold, resulting in loss of protein function and leading to slow degenerative diseases.