Rhizobia Infection Process Quiz
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Questions and Answers

What is the primary function of the bacteroids?

  • To protect nitrogenase from oxygen (correct)
  • To translocate amides to shoots of host plants
  • To convert ammonia into amides
  • To generate ATP through respiration

    • What is the primary source of oxygen for bacteroids?

  • Host plant cells (correct)
  • Atmospheric oxygen
  • Oxygen released from nitrogenase
  • Respiration of infected nodule cells

    • What is the fate of ammonia released from bacteroids?

  • It is released into the soil
  • It is stored in the bacteroids
  • It is converted into nitrate
  • It is converted into amides or ureids (correct)

    • What is the role of xylem in the transport of nitrogenous compounds?

    <p>It transports amides or ureids from infected nodule cells to shoots</p> Signup and view all the answers

    What determines the host specificity of Rhizobia and Bradyrhizobia?

    <p>The structure of lipochitooligosaccharides</p> Signup and view all the answers

    What is the result of cross inoculation group cell signaling?

    <p>The host specificity of Rhizobia and Bradyrhizobia</p> Signup and view all the answers

    What is the primary function of Nod factors?

    <p>To determine host specificity</p> Signup and view all the answers

    Which of the following is an example of a host plant that is nodulated by Rhizobium leguminosarum biovar trifolii?

    <p>Clover (Trifolium)</p> Signup and view all the answers

    What is the role of infected nodule cells in the nitrogen fixation process?

    <p>To convert ammonia into amides</p> Signup and view all the answers

    What is the benefit of the interaction between Rhizobia and host legumes?

    <p>It fixes nitrogen from the atmosphere</p> Signup and view all the answers

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