Transcript Flowersx

Flowers
Their main jobs for the plant are:
•Develop into seeds & fruits
• = Sexual reproduction
•Reproduce the plant
•Attract pollinators
3 Stages of Plant Growth
Stages of growth
1. Juvenile - when a plant first starts to
grow from a seed.
2. Reproductive – when plant produces
flowers, seeds and fruits (any plant
with flowers)
3. Dormant – when a plant rests or grows
very little if any.
Flowers - Develop into seeds & fruit
1.
Sepals -
Green parts that cover &
protect flower bud before it
opens and are at the base of the
flowers once blooming
Sepals
Are really leaves that are
modified to attract insects for
flower pollination, the pretty
part we call flowers.
They are bright &
colorful to attract
birds & bees
3. Stamen - the male flower part that includes
2 parts:
Anther
1. Filament - short stalk
that holds up the anther
Filament
so the bees can get it
2. Anther - a sac-like structure
that contains pollen (the male
sex cells or gametes)
Anther + Filament = Stamen
Male
parts
anther
filament
See the
pollen???
4. Pistil - the female flower
part
A) Female parts: Pistil
B) Male parts: Stamen
1. Ovules - the eggs or female
sex cells that become seeds if
fertilized
If ovules are fertilized, the ovary
becomes a fruit or seed coat.
So when you eat a fruit, it is the ovary
of the flower!
Ovary
Pistil (continued)
3. Style – long tube that holds
up the stigma & connects it to
the ovary. Pollen travels down
this tube to get to the ovules
Style
4. Stigma - sticky part on
top of style where insects
leave pollen
Stigma
stigma
Female
parts
style
ovary
Complete flower -
Has both male & female
parts
Incomplete flower Has only male or
female parts
Pollination - the transfer of
pollen from the anther to
the stigma of the plant.
Flower Power!!
 In groups of 2, use your notes to properly create an
anatomically correct flower out of playdough then
label the parts on your desk with a dry erase marker.
 Take a picture with your phone and then clean it up!