last lab

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lacythecoolest
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152581
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last lab
Updated:
2012-05-06 20:14:47
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tybj!
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  1. Characteristics all plants have:
    • multicellular adult
    • multicellular embryo stage
    • chlorophyll a, b and carotenoids
    • starch
    • cellulose cell walls
    • autotrophic
  2. uses other plants for support
    epiphytic
  3. sporophyte is what stage?
    the gametophyte is what stage?
    • 1st generation~makes spores
    • 2nd generation-makes gametes
  4. product of meiosis?
    haploid cell
  5. ferns and allies main way to reproduce
    spores
  6. General characteristics of ferns and fern allies
    • * alternation of generations
    • *sporophyte is the predominate stage
    • *xylem and phloem
    • * no seeds
  7. what cells that do meiosis?
    sporocyte
  8. Why didn't the plants completely decay back in the day and instead formed organic deposits?
    low oxygen in a swamp
  9. gamete producing structures
    gametangia
  10. female gametangium
    archgonium
  11. male gametangium
    anteridium
  12. *highly specialized water and food conducting tissues that form a vascular system
    vascular plants
  13. complex leaves
    megaphylls
  14. difference between ferns and fern allies
    megaphylls verses microphylls
  15. primitive leaves
    microphylls
  16. how does a diploid plant produce spores and what do they grow into?
    by meiosis and indpenedent haploid plant
  17. having two kinds of spores
    heterosporous
  18. having one kind of spore
    homosporous
  19. sporangia produced at the base of modified leaves
    sporophylls
  20. sporophylls clustered in terminal structures
    strobili
  21. microgametophytes develop in
    microspores
  22. megagametophytes develop in
    megaspores
  23. stems that occur underground
    rhizomes
  24. sporangia are in umbrella-like structures
    sporangiophores
  25. when did plants form great coal deposits?
    • carboniferous times
    • 345 to 280 million years ago
  26. may be left left from the plant
    impressions
  27. organic matter may be preserved and sometimes can be removed intact from the rock in which it occurs
    compressions
  28. internal cellular material is replaced with silica, iron pyrate, calcium carbonate but cell walls may remain intact
    petrifaction
  29. largest group of seedless, vascular plants
    ferns
  30. central axis of a leaf or leaflet
    rachis
  31. separated into reproductively fertile and vegetative leaves or leaflets
    dimorphic
  32. expanding fern leaf
    crozier or fiddlehead
  33. clumps of sporangia usually in distinct shapes
    sori
  34. lip of tissue covering sporangia
    indusium
  35. gametophyte with both antheridium and archegonium
    prothallus
  36. what happens when a sperm fertilizes the egg in the archegonium
    the first growth of the new sporophyte begins
  37. disadvantages of spore dispersal
    • * no food reserve
    • * gametophyte is vulnerable
  38. what plant uses pollen as its dispersal agent?
    seed plant
  39. gymnosperms verses angiosperms
    • * seeds are "naked" on surface of cones scales instead of fruit
    • * No flowers are produced
    • * nutrition is supplied by a large gametophyte
  40. gymnoperms 4 living subgroups
    • confiers, yews
    • cycads
    • ginkgo
    • gnetum, welwitschia
  41. have alternating diploid and haploid generations
    gymnosperms
  42. spheroid mass of 2n cells
    nucellus
  43. cup-shaped outgrowth from the scale
    integument
  44. A pollen grain is
    a microgametopyte
  45. gap in the integument
    micropyle
  46. stage where gametophyte haven't yet formed cell walls
    free nuclear stage
  47. involving two male gametes is normally required to produce the embryo and the endosperm of one seed
    double fertilization
  48. aggregation of flowers
    inflorescence
  49. individual flower has a basal stalk
    pedicel
  50. whorl parts, outside in
    • calyx
    • petals
    • corolla
    • stamens
    • filament and anther
    • ovary
  51. ovary below the other flower parts
    inferior ovary
  52. cavity in the ovary
    carpel
  53. what represents a modified leaf?
    sepal, a petal, a stamen and a carpel
  54. when more than one carpel or modified leaves have fused into a single unit
    compound pistil
  55. produced near the base of the petal tube
    nectar
  56. tip of a downward pointing projecction of the petal tube
    nectar spur
  57. ovary sits above the base of other flower parts
    superior ovary
  58. What a flower is enclosed by
    larger, lemma and the smaller palea, forming a floret
  59. two or three florets occur above two empty scales
    glumes
  60. the whole unit of florets and paired glumes
    a spikelet
  61. timy flowers aggregated into a larger unit
    composite head
  62. at the top on the rim of the ovary or fruit
    pappus
  63. matured ovule
    see
  64. seed functions
    • protects
    • provides food
  65. matured ovary
    fruit
  66. fruits functions
    dispersal of seed
  67. the protion of the embryo's seed root axis below the cotyledons
    hypocotyl and radicle
  68. elliptical scar
    hilum
  69. largest part of the embryo
    sutellum
  70. radicle surrounded by a conical sheath
    coleorhiza
  71. epicotyl by a conical sheath
    coleoptile
  72. pulpy knot at the bottom of the see
    caruncle
  73. cold, moist treatment for germination
    stratification
  74. originates from a portion of the embryo axis within the seed
    seminal roots
  75. developed from a single ovary that may be composed of one to several carpels
    simple fruits
  76. contains a single seed surrounded and protected by a bony or tough
    endocarp
  77. fleshy fruit with few to many seeds
    berry
  78. berry with a tough, waxy, or leathery rind
    pepo
  79. berry with a separable leather rind that contains oil glands
    hesperidium
  80. a "complex" or "false fruit", bc the fleshy outer region is composed f fleshy enlargemnbt of the receptacle
    pome
  81. unmodified dry fruit with a thin fruit coat
    achene
  82. an achene with a wing-like extension of the fruit coat that aids in wind or water dispersal
    samara
  83. an achene with the fruit coat and seed coat fused together totally
    caryopsis
  84. derived from an ovary composed of only one carpel that splits open on its sutures
    follicle
  85. splits along the suture and aqlso along the midrib
    legume
  86. dry fruits that split into two parts with seeds attached to a central papery partition
    silicle
  87. involve more than one ovary
    complex fruits
  88. result fromt he fusion of several ovaries of a single flower
    aggregate fruits
  89. result from fusion of parts of several flowers
    multiple fruits
  90. consists substantially of an enlarged recetacle
    accessory fruits

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