Host-Bacteria Relationships Quiz
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Questions and Answers

Which term describes a relationship where one organism benefits and the other is unaffected?

  • Parasitism
  • Mutualism
  • Commensalism (correct)
  • Antagonism

    • What is the difference between contamination and infection?

  • Contamination refers to the presence of viruses, while infection refers to the presence of bacteria.
  • Contamination and infection are the same thing.
  • Infection always leads to disease, while contamination does not.
  • Contamination refers to the presence of bacteria, while infection occurs when the bacteria cause harm to the host. (correct)

    • Which term describes the ability of a microorganism to cause disease?

  • Mutualism
  • Pathogenicity (correct)
  • Virulence
  • Commensalism

    • What is the difference between pathogenicity and virulence?

    <p>Pathogenicity refers to the ability to cause disease, while virulence refers to the severity of the disease caused.</p> Signup and view all the answers

    Which term describes a relationship where both organisms benefit?

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

    In the relationship between termites and protozoa, which organism benefits from the ability to digest cellulose?

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

    What is the term used to describe a relationship where both species benefit?

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

    Which of the following best describes commensalism?

    <p>One species benefits, and the other is unaffected</p> Signup and view all the answers

    What is the term used to describe a relationship where one species benefits at the expense of the other?

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

    In the context of host-bacteria relationships, what is meant by the term 'opportunism'?

    <p>Bacteria that do not usually cause disease but can under certain conditions</p> Signup and view all the answers

    What is the term used to describe a relationship where both species harm each other?

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

    What is the relationship between the pilot fish and the white tip shark?

    <p>The pilot fish is a commensal that feeds on the shark's leftovers</p> Signup and view all the answers

    Which of the following best describes the relationship between Staphylococcus epidermis and humans?

    <p>Commensal, as Staphylococcus epidermis feeds on the host's metabolic products without harming the host</p> Signup and view all the answers

    Which of the following best describes the difference between contamination and infection?

    <p>Contamination refers to the presence of microorganisms, while infection refers to the multiplication of parasitic organisms within the host</p> Signup and view all the answers

    What is the relationship between the malaria parasite Plasmodium and humans?

    <p>Parasitic, as Plasmodium feeds on the host and can cause harm or even death</p> Signup and view all the answers

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