Bio1338 Plants - Plant Cell Structures - Lecture One

24 Questions | Total Attempts: 49

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Bio1338 Plants - Plant Cell Structures - Lecture One

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Questions and Answers
  • 1. 
    Complete the following sentence:Plants are a diverse kingdom of eukaryotic organisms that specialise in scavanging extremely ____ mineral nutrients to generate organic molecules using solar energy.
  • 2. 
    Which is true for the vacuole?
    • A. 

      It occupies most of the cell volume

    • B. 

      It occupies the entirety of the cell volume

    • C. 

      It occupies a small amount of the cell volume

    • D. 

      It occupies half of the cell volume

  • 3. 
    Complete the following sentence:The _____ is the membrane that bounds the vacuole of a plant cell.
  • 4. 
    Which of the following are the correct functions of a vacuole?You may select more than one.
    • A. 

      Maintains TURGOR pressures by osmotic influx of water

    • B. 

      Balancing the pH of the cell

    • C. 

      Ionic homeostasis

    • D. 

      Contains enzymes

    • E. 

      Storing waste products

    • F. 

      Cell-cell communication

    • G. 

      Cell-cell connection

    • H. 

      Site of photosynthesis

    • I. 

      Site of respiration

  • 5. 
    Complete the following sentence:The _________ is a solid but dynamic and metabolically active extracellular structure composed largely of cellulose fibres and other complex polysaccharides.
  • 6. 
    Complete the following sentence:The plant cell wall is composed largely of...
    • A. 

      Cellulose fibres

    • B. 

      Peptidoglycan

    • C. 

      Phospholipids

    • D. 

      Starch

  • 7. 
    Complete the following sentence:Collectively, the cell walls are termed the "_________".
  • 8. 
    Complete the following sentence:Cellulose is a polymer of glucose residues linked together by a...
    • A. 

      Beta 1-4 bond

    • B. 

      Alpha 1-4 bond

    • C. 

      Beta 1-6 bond

    • D. 

      Alpha 1-6 bond

  • 9. 
    Complete the following sentence:Neighbouring glucose residues in cellulose are...
    • A. 

      Rotated 180° about the axis of the polymer chain

    • B. 

      Rotated 90° about the axis of the polymer chain

    • C. 

      Rotated 270° about the axis of the polymer chain

    • D. 

      Rotated 75° about the axis of the polymer chain

  • 10. 
    True or False?Cellulose is the most abundant biopolymer on the planet.
    • A. 

      True

    • B. 

      False

  • 11. 
    Complete the following sentence:Cellulose fibres are synthesised by enzyme complexes that are guided by the microtubule __________.
  • 12. 
    Complete the following sentence:Cell wall _______ is the controlled loosening of the cell wall by numerous proteins and enzymes.
  • 13. 
    How much of the plant genome is involved in cell wall formation?
    • A. 

      5-10%

    • B. 

      1-2%

    • C. 

      10-15%

    • D. 

      25-50%

  • 14. 
    Complete the following sentence:_________________ drives cell expansion once the cell wall is loosened.
  • 15. 
    Which of the following is true?
    • A. 

      During mitosis, a new cell wall is generated perpendicular to the mitotic spindle

    • B. 

      During mitosis, a new cell wall is generated parallel to the mitotic spindle

    • C. 

      During meiosis, a new cell wall is generated perpendicular to the meiotic spindle

    • D. 

      During meiosis, a new cell wall is generated parallel to the meiotic spindle

  • 16. 
    Complete the following sentence:___________ are holes through which organelles of a plant cell are connected to its neighbouring plant cell.
  • 17. 
    Which of the following plant organelles and structures are connected to neighbouring cells through the plasmodesmata?You may select more than one.
    • A. 

      Plasma membrane

    • B. 

      Endoplasmic reticulum

    • C. 

      Cytosol

    • D. 

      Vacuole

    • E. 

      Nucleus

    • F. 

      Chloroplast

    • G. 

      Mitochondria

    • H. 

      Golgi body

  • 18. 
    Complete the following sentence:Due to plasmodesmata connecting plant cells, the plant is therefore a continuous cytoplasm known as the ________.
  • 19. 
    Complete the following sentence:The ______ is the site of photosynthesis.
  • 20. 
    Complete the following sentence:Chloroplasts develop from ________ following exposure to red light.
  • 21. 
    Complete the following sentence:Plants are modified in _______ to store reserves of starch.
  • 22. 
    Complete the following sentence:Together, the xylem and phloem form the __________________.
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