Plant Pathogens Introductory Quiz
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Questions and Answers

What is a pathogen?

  • An organism that lives on a host and may cause diseases
  • An organism that lives on a host and does not cause diseases
  • An organism that lives independently of a host
  • An organism that lives, feeds, and multiplies on a host and causes diseases (correct)

    • What is a parasite?

  • An organism that lives, feeds, and multiplies on a host and may cause diseases (correct)
  • An organism that lives independently of a host
  • An organism that lives on a host and does not cause diseases
  • An organism that lives on a host and must cause diseases

    • What is the concept of plant disease based on the text?

  • The disease circle involving a non-susceptible host, a pathogen, and an environment
  • The disease square involving a resistant host, a non-virulent pathogen, and an unfavorable environment
  • The disease line involving a host, a pathogen, and a neutral environment
  • The disease triangle involving a susceptible host, a virulent pathogen, and a favorable environment (correct)

    • What is the definition of disease according to the text?

    <p>An abnormality in the physiology, morphology, and genetics of a plant that reduces quality or quantity</p> Signup and view all the answers

    What can cause plant disease?

    <p>All of the above</p> Signup and view all the answers

    What is the definition of a pathogen?

    <p>An organism or micro-organism that lives, feeds, and multiplies on a host and causes diseases</p> Signup and view all the answers

    What is the concept of the disease triangle?

    <p>It involves the interaction of a susceptible host, a virulent pathogen, and an environment favorable for disease development</p> Signup and view all the answers

    What is the definition of a parasite?

    <p>An organism or insect that lives on a host and may cause disease</p> Signup and view all the answers

    What is the definition of a disease?

    <p>Any deviation from normal functioning in a plant</p> Signup and view all the answers

    What may cause plant disease?

    <p>Biotic agents, abiotic agents, and mesobiotic agents such as viruses</p> Signup and view all the answers

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