Flowering plants

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Transcript Flowering plants

Flowering
NCES 6L1.1
Kim Lachler updated
2015
Plants
• Why are plants important to you?
– Gives you oxygen
– Gives you food
The_Plant_Life_Cycle_and_Us.mov
• Plants
Are living (Biotic)
 They grow
 Reproduce
 Respond to their environment
Flowering Plants
• Make of 90% of all plants
• They vary greatly in appearance and size.
Fit in your hand
Climb in
Basic parts of a flowering plant
The_Parts_of_a_Flowering_Plant.mov
• Flower
• Stem
• Leaves
• Roots
The role of roots
• Absorb water
• Absorb nutrients
• Provide an anchor
• Store food
Types of root systems
• Tap root
– Goes deep to find water.
– Provides a strong
anchor in the wind.
• Fibrous
– Fan out to find water
– Roots are shallow.
– the plant can easily be
blown over in high
winds.
Root Close Up
Root hair
Root cap
Stem
 supports the plant above the ground
 transports water and nutrients
• Xylem - transports it up the plant
• Phloem - flows it down the plant
Leaves
• Blade - makes up the
broad part of the leaf.
• Veins - transport
nutrients and water.
• Petiole - connects
the stem and the leaf.
Leaves are Busy
• It is where the plants food is
produced by a process called
photosynthesis.
light and carbon dioxide are taken in.
oxygen is released.
Flower
• The flowers are
responsible for
reproduction.
The Parts of a Flower
• A bud is a developing flower
• Sepal protect the bud
The Parts of a Flower
• Petals – usually colorful
• Sepal – protected the bud sometime they
fall off after the flower is formed
The Parts of a Flower
Pistil – female part
 Stigma – Sticky so the pollen will stick to it.
 Style – Tube like structure for support
 Ovary – Where the pollen goes down. It
becomes the fruit
 Ovule – Where the seed develops
The Parts of a Flower
Stamen – male part
 Anther – Carries the pollen
 Filament – Supports the anther
Two Types of Flowers
• Perfect – has both male
and female parts on the
same flower.
• Imperfect – have only the
male or only the female
parts on the same flower.
Pollination
1)The petals attract
birds and insects
by their color or
smell.
2)The bird or insect
moves the pollen
from the anther to
the stigma.
Spreading the
Seeds
• Birds and animals eat
the fruit, which
causes the seeds to
be dispersed.
• Wind can also
disperse seeds.
Protection
• Plants have developed several different
forms of protection:
» Thorns
» Poison
Bibliography
• The Great Plant Escape
http://urbanext.illinois.edu/gpe/case1/c1m1a.html Accessed 5/17/10
• Happy Living Magazine
http://www.happynews.com/living/gardening-flower/parts-floweringplant.htm
Accessed 5/18/10
• Goggle Images http://www.google.com/images Accessed 5/17/10
• Discovery Education, http://streaming.discoveryeducation.com/
Accessed 6/09/10