Botany Quiz 5-6

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Author:
Coheedfan33
ID:
116513
Filename:
Botany Quiz 5-6
Updated:
2011-11-13 18:14:20
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Botany
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Quiz 5/6
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  1. Function of Roots
    Uptake of water/Minerals, Anchorage, Storage of water/Sugar
  2. Radicle
    The part of the embryo that develops into the first root
  3. T / F: All mature plants have either a tap root or a fibrous root system
    False
  4. T/F: Dicots typically have fibrous root systems; whereas, monocots typically have tap roots
    False
  5. The region of maturation is also known as:
    The region of differensiation/ the root hair zone
  6. In addition to protecting the meristematic cells, the root cap also appears to play a role in
    perception of gravity
  7. Which of the following is / are produced by the apical meristem?
    Ground meristem, procambium, protoderm
  8. Cortex
    The region of a root between the epidermis and the endodermis is the
  9. Soil solution traveling apoplastically is prevented from entering the vascular cylinder by the
    Caspirian Strip
  10. These cells remain meristematic and produce lateral roots
    Pericycle
  11. Which of the following are true of mychorrhizae?
    • 1.enhance phosphorus uptake
    • 2.enhance water uptake
    • 3.reduce a plant's need for / production of root hairs
  12. T/F: Rhizobium bacteria converts atmospheric nitrogen to forms that are
    available to plants through a process called nitrogen fixation.
    True
  13. T/F: Because all soils are formed from basically the same materials and by the same processes, there a very few differences in soils from one geographic region to another.
    False
  14. The different layers of soil visible when ddigging a deep hole are called
    Horizons
  15. Soil Texture
    the relative proportions of sand, silt, and clay
  16. T/F: The best agricultural soils are approximately 40% sand, 40% silt, and 20% clay
    True.
  17. Which of the following statements pertaining to soil pH are true?
    • A. pH affects nutrient availability
    • B. soil microorganisms can be negatively impacted by changes in soil pH
    • C. plants grown in unsuitable soil pH may suffer from nutrient deficiencies
    • D.pH describes the relative acidity or alklinity of a soil
  18. describes the amount of soil water between PWP and field capacity
    Available water
  19. water that drains out through pore spaces in the soil and is unavailable to plants
    Gravitational water
  20. water that is held in soil pores and is available to plants
    Capillary water
  21. soil water is insufficient for plant uptake
    permanent wilting point (PWP)
  22. describes the status of soil water after excess has drianed away due to gravity
    Feild Capacity
  23. stuck to water particles and not available to plants
    Hydroscopic water

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