bio 2

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bio 2
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2012-02-22 00:48:16
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bio 2 exam 2
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  1. The escape of drops of water out of a plant through lead vein ending is known as:
    guttation
  2. Which force pushes water through the xylem as water moves into the root by osmosis?
    root pressure
  3. According to the cohesion tensison model, which of the following is the primary foce responsible for xylem transport?
    transpiration
  4. Which of the following statements is not true about stomata?
    The opening of stomata follows the diffusion of potassium ions into the guard cells.
  5. Where does most of the carbon come from that plants require?
    air
  6. The metod of water culture, or ______, is best for determining a plants mineral requirements.
    hydroponics
  7. Which of the following is not an essential mineral nutrient in plants?
    Mercury
  8. Plant cells:
    actively transport some mineral ions into the cell.
  9. Which of the following is the current explanation for the movement of organic material in phloem?
    pressure flow model.
  10. Which of the following statemtns does not apply to memebres of the kindgom Animalia?
    There are unicellular and multicellular forms
  11. Which of the following is not a characteristic of memebrs of the phylum Porifera?
    water enters through a single cavity, the osculum
  12. Which of the following statemtns does not apply to cnidarians?
    They have two tissue layers, one derives from ectoderm and the other from endoderm.
  13. Ascaris is a parasitic:
    none of the above.
  14. Parasitic flatworms:
    do not have a gastrovascular cavity for digestion like free-living flatworms.
  15. Which os the following are characcteristic of phylum Nematoda?
    molting
  16. The mantel of molluscs may contribute to which of the following body parts?
    shell
  17. Hemocyanin is the _______- contaning blood pigment found in molluscs.
    copper
  18. Which of the following is not a characteristic of annelids?
    open circulatory system
  19. Which of the following is not true of memebrs of phylum Echinodermata?
    They include the bivalves
  20. The grasshopper is:
    an arthropod that molts.
  21. Which of the following classes lacks a visceral mass, mantle, and foot?
    Crustacea
  22. Which of the following statemtns about arthropods is incorrect?
    They have a rigid internal skeleton.
  23. Cnidaria
    book lungs
  24. Blood fluke
    schistosomiasis
  25. Taenia
    proglottids
  26. roundworm
    trichinosis
  27. Annelida
    leech
  28. ticks
    lyme disease
  29. Class Hirudinea
    antiocoagulant producing
  30. Class Reptillia
    ectothermic terrestrial vertebrates
  31. Class Aves
    keel
  32. Class Mammalia
    monotremes
  33. Class Osteichthyes
    Operculum
  34. Which of the following classes exhibit metamorphosis?
    All of the above. (insecta, Amphibia, Asteroidea)
  35. A millipede has two pairs of legs on most segments.
    True
  36. Amphibians are endotherms with thin moist skin, small inefficient lungs and aquatic larvae.
    False
  37. Fishes with dermal denticles are ______; fishes with an operculum are ______.
    Cartilaginous; bony
  38. Which of the following groups has (have) members that have an abdominal pouch?
    Monotremes & Marsupial mammals. (both b and C)
  39. Which of the following is not a placental mammal?
    opposum
  40. Chordates are characterized by a notochord, a postanal tail, and what two other defining characteristics?
    dorsal hollow nerve cord and pharyngeal
  41. Which of the following is not derives from the mesodermal germ layer?
    transitional epithelium
  42. Which of the following tissues lines body cavities?
    epithelial
  43. Which of the following tissues may be grandular?
    epithelial
  44. Which of the following tissues includes bone and cartilage?
    connective
  45. Haversian systems or osterons are found in which of the following?
    compact bone
  46. Which of the following tissues contains actin and myosin filaments?
    muscular
  47. The flow of impulse through a neuron is in which direction?
    dendrite to cell body to axon
  48. Which statement is not true about homeostasis in body temperatures?
    The body repsons to head by constricting the blood vessels in the skin.
  49. Which of the following is not found in the ventral body cavity?
    spinal cord
  50. The dermal layer of skin contains all of the following except?
    melanocytes
  51. The human seleton remains carilaginous in all of the following areas except?
    the shaft
  52. Fibroblasts are the predominant cell type in which type of tissue?
    loose connective tissue
  53. Which of the following does not promote growth in plants?
    abscisic acid
  54. Abscisic acid is called the stres hormone because it:
    Promotes closure of stomata and promotes seed and bud dormancy. (both b and c)
  55. In foolish seedling disease, rice plants infected with a parasitic flatowrm produce an excess of gibberellins.
    false
  56. Stems exhibit negative gravitropism and roots exhibit positive gravitropism.
    true
  57. Thigmotropism occurs because plants cells in contact with an object tend to grown more than other plant cells.
    false
  58. The critical length of short day plants is shorter than the critical length for long day plants?
    false.
  59. Which of the following statemtns best descrives the movement of water that results from the foce of osmotic potential?
    water tends to move from the area of lower colute concentration of the area of higher solute concentration.
  60. Which of the following descrives the shape of individual pseudostratified epithelial cells?
    columnar
  61. Name the impermeable layer that borders four sides of the endodermal cells in eudicot roots.
    casparian strip
  62. Name the respiratory openings in the exoskeleton of a grasshopper.
    spiracles
  63. Name the group of vertebrates whose members have a single loop circulatory system.
    fishes
  64. Name the group of placental mammals that includes seals and walruses.
    carinvores
  65. Name the group of placental mammals that includes shrews and moles.
    insectivores
  66. Name the plant hormone that stimulates the production of cellulase, an enzyme that hydrolyzes the cellulose in plant cell walls.
    ethylene.

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