flowering kim lachler 2010 nces 6l1.1. plants why are plants important to you?...

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