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44 Cards in this Set

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What is a seed?
a reproductive package that contains embryo and a supply of stored foods inside a protective coating.
What is the reproductive cycle of seed plants?
cone flowers,meiosis spores pollen eggs haploid(n),mitosis gametophytes gametes haploid(n), fertilization zygote diploid (2n),mitosis sporophyte diploid (2n),and alternates.
Where are the gametophytes of seed bearing plants
The gametophytes live inside the sporophytes(common large plants you see around you)
Explain why seed bearing plants are able to live everywhere on Earth
they have the ability to reproduce without water
gametophytes live inside special parts of the sporophyte-plant parts known as
cones and flowers
What kinds of spores are produced by seed plants
pollen and egg
Cones and floweres are home to the __________ generation
gametophyte
What are the four living divisions of Gymnosperms?
Cycads,ginkgoes,gnetophytes and conifers
Describe gymnosperms
plants that bear their seeds on the surfaces of reproductive structures called scales
what does gymnosperm mean
naked seed
The first seed-bearing plants were known as
Seed fern - extinct today
Define Cycads
palm like plants most common one - sago palm
define Ginkgoes
Ginkgo biloba may be the oldest living species of seed bearing plants
What are conifers
sometimes called evergreens- members include spruce,pine,cedar,redwood,fir and yew trees
What do male cones produce
pollen
What do female cones produce
eggs
Female cones are sometimes called:
seed cones because they eventually contain mature seeds
What are angiosperms?
flowering plant whose seeds develop within a matured ovary (ovary)
What is the difference between gynmosperms and angiosperms?
gymnosperms have exposed seeds and angiosperms produce seeds encased in a protective tissue of the sporophyte known as the ovary.
The combination of seed and ovary is known as a
fruit
What are the reproductive organs of angiosperms?
the Flower
Flowers are formed from 4 types of specialized leaves
sepals, petals, stamens and carpels
Define Sepals
structure that encloses and protects the developing flower bud and opens as the flower blooms
Define petals
one of the white or colorful leaflike parts of a flower
Define Stamens
male leaf that produces pollen
Define filament
stamen that emerges from a flower
Define anther
sac at the tip of a filament where pollen is produced and released
Define carpels
female leaf of a flower
Define ovules
the place where female gametophytes are produced
Define style
the stemlike narrow part of the carpal
Define stigma
sticky tip of the style of the plant
Define pistil
female reproductive organ of a flowering plant, composed of ovary, style and stigma
What important feature distinguishes the life cycle of an angisperm from life cycle of gymnosperm?
double fertilization
define endosperm
food rich tissue that surrounds the embryo of a plant
define double fertilization
process of 2 fertilization events taking place inside an embryo sac
What is a fruit?
if it contains a seed inside the overy wall-ripened ovary that contains angiosperm seeds
What reproduces faster angiosperm or gymnosperm?
Angiosperm
define cotyledons
the large seed leaves that contain stored food to nourish the plant embryos of seeds
plants that have one cotyledon are know as:
monocots
Monocots constitute the class monocotyledonae which includes
grasses, irises,and cattails, corn, daffadils
plants that have two cotyledons are known as
dicots
the dicots constitute the class dicotyledonae which includes
roses,clover, tomotoes, oaks and daisies and the flowering trees such as maple, oak, elm, apple and dogwood.
monocots are identified by a single cotyledon as well as:
veins in monocot leaves usually lie parallel to each other, monocot flowers usually have floral plantss in multiples of three
dicots are identified by having 2 cotyledons as well as:
veins usually form a branching network, dicot flowers usually show multiples of 4 or 5