Ib Biology Unit 9

18 Questions  I  By Kmacleod
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This quiz helps ib student to prepare for a test in unit 9 biology. Plant sciences

  
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  • 1. 
    What are non-vascular land plants?
    • A. 

      Contiain vascular tissues but do not produce seeds. this includes ferns, and mosses

    • B. 

      Flowering plants with seeds that develop inside a protective structure

    • C. 

      Do not contain any conducting tissues and are often referred to as Brophytes, and grow close to the ground

    • D. 

      Non-flowering plants with seeds that do not develop within an enclosed structure.


  • 2. 
    Which of the following is not true about Dictyledonous and Monocotyledonous plants?
    • A. 

      Dicotyledonous plants have parallel veins; Monocotyledonous have netlike veins

    • B. 

      Dicotyledonous have two cotyledons; Monocotyledonous have one cotyledons

    • C. 

      Dicotyledonous pollen grains have three openings; Monocotyledonous pollen grains have one

    • D. 

      Dicotyledonous tap roots present with lateral branches; Monocotyledonous have a fibrous root system


  • 3. 
    Which is not true on how terrestrial plants support themselves?
    • A. 

      Turgor pressure: It is the resulting pressure in a plant that is exerted on the cell wall due to water stored in the large central vacuole.  Turgor pressure decreases if a plant dries or is exposed to salty conditions.

    • B. 

      Lignin is a highly branched polymer found in the xylem cells of terrestrial plants.  These lignified cells have significantly increased support capabilities.  More than 25% of the mass of dry wood can be lignin.

    • C. 

      mineral ions that move from lower concentrations of water to a higher concentration using cellular energy.

    • D. 

      • Cellulose is a polysaccharide found in plant cell walls of the supporting regions of plants.  The cellulose adds strength and support to the cell walls.


  • 4. 
    Gaurd cells can do what?
    • A. 

      Regulate transpiration by opening and closing the stoma.

    • B. 

      Move mineral ions from lower to higher concentrations

    • C. 

      Store food and water

    • D. 

      Create proteins


  • 5. 
    What causes the closing of the stoma
    • A. 

      Plant hormone zerophsic acid which causes the potassium ions to rapidly diffuse out of the guard cells surrounding the stoma

    • B. 

      Plant hormone hydrophyes acid which causes the potassium ions to rapidly diffuse out of the guard cells surrounding the stoma

    • C. 

      Plant hormone Abscisic acid which causes the potassium ions to rapidly diffuse out of the guard cells surrounding the stoma

    • D. 

      Plant hormone mesophytes acid which causes the potassium ions to rapidly diffuse out of the guard cells surrounding the stoma.


  • 6. 
    What is the function of the upper cuticle?
    • A. 

      Optimum exchanges of gases. helps prevent water loss from the plant

    • B. 

      Responsible for photosynthsis.

    • C. 

      A protective outer coating that protects the plant from harmful agents such as pathogens. the dermal tissue can also help prevent water loss and often contains specialized structures for specfic purposes

    • D. 

      Aid in reducing water loss by decreasing transpiration and protects agianst insect invasion


  • 7. 
    What is the function of the palisade layer?
    • A. 

      Aids in reducing water loss by decrasing transpiration and protects agianst insect invasion

    • B. 

      Responsible for photosynthsis.

    • C. 

      Allow for gas exchange and allows for some photosynthesis

    • D. 

      Aid in reducing water loss by decreasing transpiration and protects agianst insect invasion


  • 8. 
    What is the function of the spongy layer?
    • A. 

      Allow for gas exchange and allows for some photosynthesis

    • B. 

      A protective outer coating that protects the plant from harmful agents such as pathogens. the dermal tissue can also help prevent water loss and often contains specialized structures for specfic purposes

    • C. 

      Aids in reducing water loss, allows light to pass through to the paslisade layer, prevents gas exchange and secretes the waxy cuticle that covers the leaf

    • D. 

      Responsible for photosynthsis.


  • 9. 
    What is the function of the veins?
    • A. 

      Responsible for photosynthsis.

    • B. 

      Composed of thin walled cells that play a role in storage, support, secretion and photosynthsis

    • C. 

      Transports the products of photosynthesis and raw materials

    • D. 

      Allow for gas exchange and allows for some photosynthesis


  • 10. 
    What is the function of the lower cuticle?
    • A. 

      Aids in reducing water loss, allows light to pass through to the paslisade layer, prevents gas exchange and secretes the waxy cuticle that covers the leaf

    • B. 

      Aids in reducing water loss by decrasing transpiration and protects agianst insect invasion

    • C. 

      Allow for gas exchange and allows for some photosynthesis

    • D. 

      Composed of thin walled cells that play a role in storage, support, secretion and photosynthsis


  • 11. 
    What is the dermal tissue?
    • A. 

      Allow for gas exchange and allows for some photosynthesis

    • B. 

      A protective outer coating that protects the plant from harmful agents such as pathogens. the dermal tissue can also help prevent water loss and often contains specialized structures for specfic purposes

    • C. 

      Composed of thin walled cells that play a role in storage, support, secretion and photosynthsis

    • D. 

      Consists of xylem and phloem. they are responsible for conducting water from the roots to the leaves along with water and dissolved minerals. they also provide support and protection for the plant


  • 12. 
    What is the ground tissue?
    • A. 

      A protective outer coating that protects the plant from harmful agents such as pathogens. the dermal tissue can also help prevent water loss and often contains specialized structures for specfic purposes

    • B. 

      Consists of xylem and phloem. they are responsible for conducting water from the roots to the leaves along with water and dissolved minerals. they also provide support and protection for the plant

    • C. 

      Aids in reducing water loss by decrasing transpiration and protects agianst insect invasion

    • D. 

      Composed of thin walled cells that play a role in storage, support, secretion and photosynthsis


  • 13. 
    What is the vascular tissue?
    • A. 

      Consists of xylem and phloem. they are responsible for conducting water from the roots to the leaves along with water and dissolved minerals. they also provide support and protection for the plant

    • B. 

      A protective outer coating that protects the plant from harmful agents such as pathogens. the dermal tissue can also help prevent water loss and often contains specialized structures for specfic purposes

    • C. 

      Composed of thin walled cells that play a role in storage, support, secretion and photosynthsis

    • D. 

      Aids in reducing water loss, allows light to pass through to the paslisade layer, prevents gas exchange and secretes the waxy cuticle that covers the leaf


  • 14. 
    How does reduced leaves reduce transpiration?
    • A. 

      Reduce surface area and number

    • B. 

      Reduce water loss

    • C. 

      Prevents water loss

    • D. 

      Close guard cells


  • 15. 
    What is the function of the filament
    • A. 

      Hold the stigma

    • B. 

      Protect the developing flower

    • C. 

      The stalk of the stamen which holds up the anther

    • D. 

      Male sex cells


  • 16. 
    Which are the male and female sex cells
    • A. 

      Sepal and ovary

    • B. 

      Anther and ovary

    • C. 

      Style and sepal

    • D. 

      Stigma and petal


  • 17. 
    What is the function of the micropyle
    • A. 

      New plant when germination occurs

    • B. 

      Seed coat. protective layer

    • C. 

      The seed leaves that serve as nutrient storage structures

    • D. 

      The scar from the opening where the pollen tube had entered the ovule


  • 18. 
    What is photoperiodicty?
    • A. 

      Production of ATP

    • B. 

      Blue-green pigment

    • C. 

      How a plants response to the length of the night

    • D. 

      The development of seeds into a plant


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