Plant Bio Final 1

  1. Horizons
    soil layers with specific characteristics
  2. O-Layer
    a soil horizon rich with organic matter and decomposing litter
  3. A-Layer
    zone of leacing, may be dark in color
  4. B-Layer
    zone of deposition
  5. C-layer
    parent rock
  6. Name the 6 major macronutrients
    Nitrogen (N), Potassium (K), Calcium (Ca), Magnesium (Mg), Phosphorus (P), and Sulfur (S)
  7. Name the Micro Nutrients
    Sodium (Na), Iron (Fe), Manganese (Mn), Chlorine (Cl), Copper (Cu), Zinc (Zn), Boron (B), and Molybdenum (Mo)
  8. Adventitious Roots
    roots that develop from the stem
  9. Casparian Strip
    a band of water resistant material in the radial walls of the endodermis
  10. Endodermis
    the innermost layer of cells of the cortex
  11. Fibrous Roots
    roots that are adventitious from the stem and replace a prominent tap root.
  12. Lateral or Secondary Roots
    roots that develop from the tap root.
  13. Mycorrhizae
    a symbiotic association between the root and a fungus.
  14. Pericycle
    the outer most layer of cells of the vascular cylinder.
  15. Primary Meristem
    the principle site of cel division in the root tip.
  16. Prop Root
    adventitious roots that grow from the stem and help hold the plant erect. I think these are like corn and other such crops.
  17. Root Cap
    a group of cells that protect the root tip as it grows through the soil. It is also the site of gravity detection.
  18. Vascular Cylinder
    the xylem and phloem of the root.
  19. Bark
    layers of stem tissue exterior to the vascular cambium
  20. Cambial Zone
    the cambium and its immediate derivatives
  21. Cambium
    a layer of dividing cells that forms the xylem toward the inside and the phloem toward the outside.
  22. Cork
    the outer covering of the plant that replaces the epidermis.
  23. Growth Ring
    the amount of xylem produced in one year
  24. Lenticels
    Lens shaped openings that develop through the cork and allow exchange of grasses through the cork.
  25. Ray
    a file of parenchyma cells running from the pith to the cortex.
  26. Suberin
    a waterproof material found in the walls of cork cells.
  27. Wound Cork
    cork produced where living tissue is exposed to air.
  28. Apoplast
    the cell walls and intercellular spaces of a plant
  29. Cohesion
    the tendency of like molecules to adhere or stick together
  30. Hydrogen Bond
    an attraction between a positively charged hydrogen atom in a polar molecule and a negatively charged oxygen or nitrogen atom in another polar molecule.
  31. Plasmodesmata
    thin, rotoplasic strands connecting cells.
  32. Polar Compound
    a chemical bond in which electrons are shared unequally among participating atoms, resulting in differences in charge in different areas of a molecule.
  33. Pressure Flow Hypothesis
    an explanation for the way organic compounds, including sugar, move throughout the plant.
  34. Spheres of Hydration
    water molecules forming shells around ions, keeping them from interacting.
  35. Symplast
    all the connected protoplasms of the cells of a plant.
  36. Tension
    in a column of water molecules, a result of the cohesion of water molecules.
  37. Translocation
    the movement of organic compounds within the plant.
  38. Transpiration
    the evaporation of water from the leaf.
Card Set
Plant Bio Final 1
Plant Bio Final 1