Transcript Plant Reproduction and Development

Name
Type
What ?
Organisms
+
-
1. Binary
Fission
Asexual
Cell splits and • bacteria
replicated DNA
goes with each
part
• fast
• easy
• all
offspring
have same
DNA
2.
Regeneration/
Fragmentation
asexual
Lost or
Invertebrates
damaged
• worms
tissues, organs • Starfish
or limbs are
restored
• easy
• parent
broken
• same DNA
3. Budding
asexual
Offspring
grows off of
parent
• fast
•Somewhat easy
•All
offspring
have same
DNA
4. Pollination
sexual
When pollen is Flowering
transferred
plants
from the anther
to the stigma
• plants
don’t have
to move
• mixes
DNA
• need a
pollination
vector
5. Sexual
Reproduction
sexual
Egg and sperm Most animals
unite to form a and some
zygote
plants
• results in
genetically
differences
• slow
•Yeast
•hydras
Class Starter Questions
1. Draw a picture of a flower and try to label it’s
parts as best you can.
2. Can you Identify which are the female and male
parts?
Parts of a Flower
1. Sepals
2. Petals
3. Stamens
4. Pistil
pistil
Sepals
Sterile,
leaf-like structures. (do
not have the capacity to produce
gametes)
May be brightly colored.
Function
Protect
other flower parts.
Attract pollinators.
Petals
Sterile
flower
part.
Often brightly
colored.
Function
Attract
pollinators.
Stamens
Male
reproductive
flower structure.
Function
Produce
pollen
(like plant sperm).
Stamen Structure
Anther
- pollen
producing sac.
Filament - stalk.
Pistil
Female
reproductive flower
structure.
Function
Produce
ovules.
Pistil Structures
– receives the pollen.
Style – stalk.
Ovary – contains the ovules.
Stigma
Ovule
 An
immature seed before fertilization.
 The
ovules are the female gamete.
Pollen Development
Pollen
is the male gamete.
Pollination
The
transfer of pollen from
the filament to the stigma.
Pollen Vectors
Bees
Butterflies
Birds
Bats
Flies
Moths
Beetles
Wind
Fertilization
The
union of
the ovum and
sperm to
produce a
zygote.
After Fertilization
Zygote
(fertilized egg
cell)  plant
embryo
Ovule  Seed
Ovary  Fruit
Fruit Functions
Protect
the
seeds.
Aid in seed
dispersal.
Seeds
Contain
a miniature plant.
Main dispersal mechanism
for plants.