Wake-up
Watch in presentation mode!
1. Explain the difference between a
gymnosperm and an angiosperm.
1. List the four main groups of plants.
Flower
Structure
There are several videos in
these notes. Please watch
them. I really think you will
enjoy them!! If you are
having trouble with the links,
copy and paste the address in
a different browser.
What is a flower?
Reproductive structure of Angiosperms
(flowering plants)
Pistil:
Female
Ovary:
Eggs (Ovules)
Petals:
Stamen:
Attract Pollinators Male
Locule:
Chamber of Eggs
Sepals:
First leaves on bud
Stigma: Sticky to
attract pollen
Pistil:
Female
Style: “Neck” of the
Pistil
Ovary
Eggs/Ovules
Anther:
Contains Pollen
(Sperm)
Stamen:
Male
Filament:
Anther Stalk
What is pollination?
Transfer of pollen from the anther to the stigma
of a plant
Type of Pollination: Self Pollination
Plant fertilizes it
own eggs
Type of Pollination: Cross Pollination
Pollen from one flower fertilizes the egg of another
Methods of Cross Pollination
1. Wind: Plant produce lightweight pollen in great
numbers with the hopes of landing on another plant of
its kind
Video LINK #1
Select “Yellow Pollen
Coats State” Video
Video LINK #2
Methods of Cross Pollination
2. Animals: Flowers have bright petals, nectar, and a sweet
smell to attract animals. Pollen gets dropped off on animal
and they carry to another plant
Mutualistic Coevolution
Plants and animals have changed (evolved)
together over time to create a relationship that is
completely depend on each other
Example #1
Video LINK
Plant: Corpse flower
(Titan Arum)
Animal: Flies
Flies are attracted
to the corpse
flower because it
smells like rotten
meat; pick up the
pollen
Example #2
Video LINK #1
Video: Planet Earth
Desert (23:50)
Plant: Flowers
Animal: Bats
The
Batsflower
are attracted
drops its
pollen
to theonlarge,
the bat
which
strongcarries
smelling
it to
another
flowers
flower
Example #3
Plant: Flowers
Animal: Bees
Flowers provide
bees with nectar
and pollen, both
of which are a
food source.
Example #3
LINK #1
LINK #2
Plant: Flowers
Animal: Bees
In turn the bee
helps carry the
flowers pollen to
other flowers;
bees are covered
in tiny hairs
Video Clip: Beauty of Pollination
When complete with notes, get the Flower
Structure Coloring Activity from the substitute
and grab a plastic container with markers and
colored pencils.
With the time left in class, complete this activity.
You need to color, label, and answer the
questions.
If you complete this activity, turn it into the bin
and find something else to work on. If not, this is
homework tonight.