The World of Viruses
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Questions and Answers

Which of the following is NOT a component of a virus?

  • Nucleic acids
  • Proteins
  • Carbohydrates (correct)
  • Lipids
  • How do viruses reproduce?

  • By consuming nutrients from the environment
  • By injecting their genetic material into living cells (correct)
  • By dividing like cells
  • By undergoing photosynthesis
  • What is the size of viruses?

  • Visible under a compound microscope
  • Visible under a light microscope
  • Visible under an electron microscope (correct)
  • Visible to the naked eye
  • What is the protein coat surrounding a virus called?

    <p>Capsid</p> Signup and view all the answers

    How do viruses enter human or animal cells?

    <p>By fusing with the cell membrane</p> Signup and view all the answers

    Match the following descriptions with their corresponding terms related to viruses:

    <p>Non-living particle made of proteins, nucleic acids, and sometimes lipids = Virus The process by which viruses reproduce by infecting living cells = Viral infection The protective protein coat of a virus = Capsid A cell that viruses can infect = Host cell</p> Signup and view all the answers

    Match the following terms with their definitions in the context of viruses:

    <p>Virus = A non-living particle that can only reproduce by infecting living cells Capsid = The protein coat surrounding a virus Viral genes = Genes of a virus that are expressed once inside a cell Host cell = A human or animal cell that a virus enters and takes over</p> Signup and view all the answers

    Match the characteristics with their corresponding virus-related terms:

    <p>Can only be viewed with an electron microscope = Virus Cannot grow or multiply on its own = Virus Contains only a few genes in the simplest form = Virus May destroy the cell once inside = Viral genes</p> Signup and view all the answers

    Match the following terms to their definitions related to virus structure and composition:

    <p>Proteins that trick the cell to take in the virus = Receptor proteins A protective layer surrounding a virus = Capsid The smallest unit of a virus containing only a few genes = Simplest virus A cell that is taken over by a virus to help it multiply = Host cell</p> Signup and view all the answers

    Match the following virus-related terms with their descriptions:

    <p>Virus = A particle that is not alive and can only reproduce by infecting living cells Capsid = The protein coat surrounding a virus Viral genes = They are expressed once the virus is inside a cell and may destroy the cell Host cell = A cell that is invaded by a virus in order for the virus to multiply</p> Signup and view all the answers

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