Terrestrial Plant Diversity-Seed bearing plants Flashcards
(27 cards)
The seed contains
embryo
nutrients
protective coat
Heterosporus (2 types)
Microspore (male) and Megaspore (female)
Dioecious
two house (male and female)
Monoecious
one house (mega/micro on same plant)
Gymnosperms Example
Pine Trees
Gymnosperms characteristics (3)
1) “naked seeds”-not enclosed by ovary
2) adapt to dry conditions
3) 1 pollen grain-contain nutrients needed
Angiosperms examples (3)
Watercots, Dicots, Waterlillies, Pine Cone,etc.
Angiosperm characteristics (4)
1) Seeds enclosed by ovary
2) Rely on flowers for sexual reproduction
3) most abundant plants on earth
4) 150 mil years old
Double Fertilization
Angiosperms-one egg for embryo and one for nutrients
Pine cone is a angio or gymnosperm?
Gymnosperm
Gymnosperm types (5)
1)Cycadophyta 2)Ginkophyta 3)Cypressophyta 4)Gnetophytes 5)Pinophyta
Cycadophyta
Gymnosperm
Look like palms
Ginkophyta Characteristic
Male/female plants (deciduous)
“Living Fossil”
Cypressophyta ex and characteristics (2)
Redwoods, junipers, yews
1) narrow, scaled leaves
2) cold, dry environments
Gnetophytes Ex and Characteristics (3)
1)contain vessel elements 2)tropical/desert trees, shrubs, and vines 3)Micro/megasporangia flower like to allow insects to assist in reproduction
Pinophyta
pine, spruce, trees
classic gymnosperms
Angiosperms three adaptations
1)Produce flowers 2)fruits 3)Water-conducting vessels
2 main groups of Angiosperms
Monocots and Eudicots
Characteristics of Monocots (6)
Random vascular arrangement, “1st leaf”, One cotyledon (embryo), Parallel veins, Pedals mult. of threes, SEED STAYS IN GROUND
Characteristics of Dicots (5)
Circular vessel arrangement, 2 cotyledon (embryo), Branchy veins, pedals 4 or 5, two “first leaves”, SEE GROWS OUT OF GROUND
Flower Anatomy (4)
Sepal, Petals, Stamen, Carpel
Sepal
two leaves enclose the flower
Stamen
male portion of flower (anther and filament)
Carpel
Produce ovule-female portion (sigma, style, and ovary)