Plant Growth And Development Test 2: 17/11/12

10 Questions | Total Attempts: 186

SettingsSettingsSettings
Please wait...
Plant Quizzes & Trivia

Questions and Answers
  • 1. 
    Ethylene is a:
    • A. 

      Gaseous enzyme

    • B. 

      Naturally occurring gaseous growth hormone or growth inhibitor or growth regulator

    • C. 

      Liquid gas mixture

    • D. 

      Solid hormone

  • 2. 
    The chemical substance which helps in the formation of flowers in plants is:
    • A. 

      Florigen

    • B. 

      Fluorocarbon

    • C. 

      Auxin

    • D. 

      Gibberellic acid

  • 3. 
    Gibberellin / Gibberellic acid has been successfully employed to induce flowering:
    • A. 

      In short day plants under long day conditions

    • B. 

      In long day plants under short day conditions

    • C. 

      For some plants

    • D. 

      None of the above

  • 4. 
    Highest concentration of auxin exists in :
    • A. 

      At the base of various plant organs

    • B. 

      Growing tips of plants

    • C. 

      In leaves

    • D. 

      In xylem and phloem cells only

  • 5. 
    Photoperiodism is:
    • A. 

      Growth curvature in response to light

    • B. 

      Recurrence of day and night

    • C. 

      Effect of day length on plant growth

    • D. 

      Flowering plant

  • 6. 
    For rooting on stem cuttings or on leaves of Bryophyllum the growth regulator used is:
    • A. 

      Indole butyric acid / Auxin

    • B. 

      Gibberellic acid

    • C. 

      Carotene

    • D. 

      Lycopene

  • 7. 
    Leaf aging is retarded by:
    • A. 

      Cytokinin

    • B. 

      Abscissic acid

    • C. 

      Florigen

    • D. 

      Auxin

  • 8. 
    Hormone responsible for Vernalization is:
    • A. 

      Florigen

    • B. 

      Colchicine

    • C. 

      Abscission

    • D. 

      Vernalin

  • 9. 
    In unisexual plants, sex can be changed by application of:
    • A. 

      Ethanol

    • B. 

      Auxins (or ethylene)

    • C. 

      Cytokinins

    • D. 

      ABA

  • 10. 
    The stimulus of vernalization is received in annual and biennial plants by:
    • A. 

      Dry seeds

    • B. 

      Roots

    • C. 

      Stem apex

    • D. 

      Leaves

Related Topics
Back to Top Back to top