Angiosperms

Card Set Information

Author:
efrain12
ID:
151953
Filename:
Angiosperms
Updated:
2012-05-03 14:05:39
Tags:
botany
Folders:

Description:
angio
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  1. Characteristics of angiosperms (5)
    • 1.) Flowers
    • 2.) Ovary
    • 3.) double fertilization
    • 4.) vessels and tracheids
    • 5.) sieve tube cells
  2. (charasteristics of angiosperms) flowers
    -coevolved with their pollinators
  3. (charasteristics of angiosperms) Ovary
    a) covers and protects seeds
  4. Origin of angiosperms: Theory: flower parts evolved from leaves
    Evidence: modified leaf with seeds
  5. Sepals (3)
    • a) outermost part or ring
    • b)green (many)
    • c) veins -like leaves
  6. Petals (3)
    • a) just inside sepals
    • b) colored or showy
    • c) veins
  7. Stamen (2)
    • a) male part of plant
    • b) 2 parts
    • -filament (stalk)
    • -anther contains pollen
  8. Pistil or Carpel (3)
    • a) female part of plant
    • b) center of flower
    • c) 3 parts
    • -stigma
    • -style
    • -ovary
  9. (pistil) Stigma
    -top, sticky

    -receives the pollen
  10. (pistil) Style
    connects stigma and ovary
  11. (pistil) Ovary
    immature fruit, seeds inside
  12. Origin of angiosperms: Theory: Stamens orginated from modified leaves
    Evidence: fossils show leaves with sporangia evolved into filaments
  13. Origin of angiosperms: Theory: Pistil evolved as a modified leaf folded up to protect the seeds inside
    Evidence: fossils and living plants
  14. Ancestors of Angiosperms
    • 1.) advanced gymnosperms
    • -maybe gnetophyta

    • 2.)seed ferns
    • -fern like with seeds
    • -extinct plants

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