Plant Growth And Development Test 1: 16/11/12

10 Questions | Total Attempts: 640

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Plant Quizzes & Trivia

Questions and Answers
  • 1. 
    Substances which originate at the tip of stem and control growth elsewhere are:
    • A. 

      Vitamins

    • B. 

      Enzymes

    • C. 

      Food Materials

    • D. 

      Phytohormones / Auxins

  • 2. 
    Abscissic acid controls:
    • A. 

      Shoot elongation

    • B. 

      Cell elongation and cell wall formation

    • C. 

      Cell division

    • D. 

      Leaf fall and dormancy

  • 3. 
    Cytokinin:
    • A. 

      Is a hormone whose main function is the induction of cell division and delay in senescence

    • B. 

      Is the process of cell division

    • C. 

      Refers to cell movements

    • D. 

      Causes dormancy

  • 4. 
    Cell elongation in plants is caused by:
    • A. 

      Auxin

    • B. 

      Gibberellin

    • C. 

      Florigen

    • D. 

      Traumatin

  • 5. 
    Gibberellin was first extracted from:
    • A. 

      Gibberella fujikuroi or Fusarium moniliforme

    • B. 

      Gelidium

    • C. 

      Gracelaria

    • D. 

      Aspergillus

  • 6. 
    Genetic dwarfism can be overcome by the treatment of:
    • A. 

      Gibberellins

    • B. 

      Ethylene

    • C. 

      Anti-gibberellin

    • D. 

      Auxin

  • 7. 
    Which of the following is capable of delaying in senescence?
    • A. 

      Cytokinins

    • B. 

      Auxins

    • C. 

      Gibberellins

    • D. 

      Ascorbic acid

  • 8. 
    The ripening of fruits can be accelerated by:
    • A. 

      Reducing the supply of water to plant when fruits are maturing

    • B. 

      Increasing the supply of nitrogen to the atmosphere surrounding them

    • C. 

      Warming up the surrounding artificially

    • D. 

      Artificially adding ethylene gas to the atmosphere surrounding them

  • 9. 
    Pineapple can be made to flower in off season by:
    • A. 

      Ethylene

    • B. 

      Zeatin

    • C. 

      Short days

    • D. 

      Low temperature

  • 10. 
    A well known naturally occuring auxin is:
    • A. 

      2,4-D

    • B. 

      Indole Acetic Acid

    • C. 

      NAA

    • D. 

      Maleic Hydrazide

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