flowering kim lachler 2010 nces 6l1.1. plants why are plants important to you?...
TRANSCRIPT
Flowering
Kim Lachler 2010
NCES 6L1.1
Plants• Why are plants important to you?
The_Plant_Life_Cycle_and_Us.mov• Plants
Are living (Biotic)
They grow
Reproduce
Respond to their environment
Flowering Plants
• Make up 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 cap
Root hair
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• Plants produce their own food
through 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 – protects the bud; sometimes they fall off after the flower is formed
The Parts of a FlowerPistil – 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 FlowerStamen – 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-flowering-plant.htmAccessed 5/18/10
• Goggle Images http://www.google.com/images Accessed 5/17/10
• Discovery Education, http://streaming.discoveryeducation.com/ Accessed 6/09/10