Plant Physiology

12 Questions | Total Attempts: 911

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Plant Physiology - Quiz

Water relations


Questions and Answers
  • 1. 
    Special type of diffusion where semi-permeable membrane is required is called..............?
    • A. 

      Special diffusion

    • B. 

      Osmosis

    • C. 

      Imbibition

    • D. 

      None of the above

  • 2. 
    The pressure which develops in a cell from time to time due to osmotic diffusion of water is known as?
    • A. 

      Turgor pressure

    • B. 

      Osmotic pressure

    • C. 

      Diffusion pressure deficit

    • D. 

      Suction pressure

  • 3. 
    Water potential of protoplasm is equal but opposite to Diffusion Pressure Deficit 
    • A. 

      True

    • B. 

      False

  • 4. 
    The adsorption of watre by hydrophilic colloids is known as
    • A. 

      Diffusion pressure deficit

    • B. 

      Imbibition

    • C. 

      Osmosis

    • D. 

      None of the above

  • 5. 
    For a plant cell to undergo plasmolysis, it should be place in
    • A. 

      Hypotonic solution

    • B. 

      Hypertonic solution

    • C. 

      Neutral solution

    • D. 

      Isotonic solution

  • 6. 
    Turgor pressure is at the lowest in case of a flaccid cell
    • A. 

      True

    • B. 

      False

  • 7. 
    Water potential is denoted by the symbol
    • A. 

      Rho

    • B. 

      Epsilon

    • C. 

      Psi

    • D. 

      Zeta

  • 8. 
    When a solvent is separated from a solution, the solvent molecules being higher in concentration will diffuse towards the solution under a pressure. This pressure is is known as
    • A. 

      Wall pressure

    • B. 

      Turgor pressure

    • C. 

      Diffusion pressure deficit

    • D. 

      Matric potential

  • 9. 
    The point at which plasmolysis just begins is known as 
    • A. 

      Initial plasmolysis

    • B. 

      Incipient plasmolysis

    • C. 

      Pre plasmolysis

    • D. 

      None of the above

  • 10. 
    The strip of young endodermal cells of the root possess suberised thickening on lateral and radial walls. This strip is known as
    • A. 

      Endodermal strip

    • B. 

      Suberised strip

    • C. 

      Casparian strip

    • D. 

      Pericycle

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