As Bio - Transport In Plants

17 Questions

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As Bio - Transport In Plants

A quiz on Transport in Plants. . .


Questions and Answers
  • 1. 
    Which of these is not a reason why plants need a transport system?
    • A. 

      They can't rely on diffusion alone

    • B. 

      Too active

    • C. 

      Small surface area to volume ratio

    • D. 

      Multicellular

  • 2. 
    Xylem tissue doesn't carry...
    • A. 

      Water

    • B. 

      Inorganic substances

    • C. 

      Organic nutrient

  • 3. 
    • A. 

      Transpiration

    • B. 

      Translocation

  • 4. 
    The distribution of the xylem and phloem in the stem is like:
    • A. 

      Xylem in the middle and phloem outside

    • B. 

      Seperate vascular bundles around a medula

    • C. 

      Forming a central midribi

  • 5. 
    Root hair cells absorb mineral ions using
    • A. 

      Active transport

    • B. 

      Diffusion

    • C. 

      Osmosis

  • 6. 
    Active transport of minerals creates a water potential gradient into the
  • 7. 
    Which is the most commonly used pathway for water
    • A. 

      Symplast pathway

    • B. 

      Apoplast pathway

    • C. 

      Vacuolar pathway

  • 8. 
    In the cell wall what enables the apoplast pathway to function
    • A. 

      Cellulose

    • B. 

      Water filled spaces

    • C. 

      Cytoplasm

    • D. 

      Oxygen

  • 9. 
  • 10. 
    The casparian strip at the endodermis blocks which pathway?
    • A. 

      Apoplast

    • B. 

      Symplast

  • 11. 
    The casperian strip contains what making it waterproof?
    • A. 

      Waxy cutile

    • B. 

      Fibres

    • C. 

      Suberin

  • 12. 
    Which of these is not an adaption of parenchyma?
    • A. 

      Elongated cells

    • B. 

      Isodimetric

    • C. 

      No cholorplast

  • 13. 
    • A. 

      Support vessels

    • B. 

      Transport water

    • C. 

      Packing tissue

  • 14. 
    Why are xylem cells dead?
    • A. 

      Because they have no nucleus

    • B. 

      Lignin is impermeable

    • C. 

      Just because

  • 15. 
    Transpiration is:
    • A. 

      The movement of water up the xylem using osmosis

    • B. 

      The loss of water vapour from areal parts of the plant due to evaporation

  • 16. 
    Which of these is not an advantage of transpiration?
    • A. 

      It enables a transpiration stream

    • B. 

      Aids translocation

    • C. 

      Cooling effect

  • 17. 
    Because of ________ the molecules gain more kinetic energy spreading out faster. ______ also provides latent heat of vapourisation.