TEST 3 Morgan

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Author:
Anonymous
ID:
12731
Filename:
TEST 3 Morgan
Updated:
2010-03-31 20:49:04
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biology plants
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RRES
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  1. Sapwood is _______________
    ____________ xylem.
    functional dead
  2. ______ is required for
    complete flowering and fruit development
    B
  3. ______________________is the shrinkage of individual cells due to loss water, causing the cell to
    become flaccid.
    plasmolysis
  4. Overall chlorosis of the leaves that starts at young leaves and progresses to older leaves is a
    deficiency of _____.
    S
  5. ________________ humidity is the amount of water vapor in air expressed as grams of water per
    cubic meter of air (g/m3).
    absolute
  6. ____________________is an instrument that measures the soil moisture tension.
    tensiometer
  7. Chlorosis is __________ of the leaves.
    yellowing
  8. _____________ irrigation is a greenhouse irrigation system consisting of small tubes (like an IV tube) that
    supply water directly to each pot.
    chapin tube
  9. A dead area on leaves is called _________.
    necrosis
  10. _____________ is a chemical that closes or clogs stomata, thereby decreasing transpiration.
    antitranspirant
  11. A __________________ soil has a pH of 8.5-10, and has less than 2,000 ppm total soluble salts.
    sodic
  12. _________________can be added to basic soils to decrease pH.
    elemental sulfur
  13. One element not supplied naturally by air and water is _____.
    N
  14. ___________________ water is adsorbed onto soil particles, is held at less than -31 bars of tension, and is not available to the plant.
    hygroscopic
  15. ______________________ is the shrinkage of individual cells due to loss water, causing the cell to
    become flaccid.
    plasmolysis
  16. ____________________________is a magnesium (Mg) fertilizer.
    Epsom salt
  17. ______________ is the milliequivalents per 100 grams of dry soil.
    cation exchange capacity
  18. ______ is one of the immobile nutrients.
    Fe
  19. _________________________is the process that converts nitrate to nitrogen gas.
    denitrification
  20. A typical growing medium should contain ________% inorganic amendments.
    25-50
  21. ______________________ is the positive pressure inside cells due to water uptake.
    • turgor
    • pressure
  22. _______________ is a highly decomposed fine, amorphous organic matter in the soil.
    humus
  23. The three essential elements supplied naturally by air and water are ____, _____,and
    _____.
    C,H,and O

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