pollination & fertilization mrs. taylor 6 th grade science
TRANSCRIPT
Pollination & Fertilization
Mrs. Taylor
6th grade Science
In the Life Cycle of a Flowering Plant there are two very
important processes –
Pollination & Fertilization.
PollinationDuring the process of
pollination a pollen cell (male sex cell) from the
anther of the stamen must be moved to the stigma of
the pistil.
Pollination Diagram
The Red arrow shows the pollen from the anther moving to the stigma (top of) the pistil. This movement of pollen is called Pollination.
PollinatorsPollination occurs with the help of
Pollinators like….• Bees
• Butterflies• Birds
• Other insectsWind also helps pollination occur by
carrying pollen from one flower to another
FertilizationOnce the pollen has been moved to the stigma and
pollination has occurred the process of Fertilization can
begin.
Fertilization• First a pollen tube is created that
allows the pollen to move down the style of the pistil to the ovary.
• Once in the ovary the pollen cell ( male sex cell) can join with the ovules (female egg cell). The joining of these two sex cells is called fertilization.
• Once the ovule is fertilized a seed will develop!
Watch fertilization in action!
http://www.ashfieldgirls.org/science/plant_reproduction/fertilisation.htm
Watch this video clip to review the parts of a
flower, pollination, and fertilization.
It is Quiz time
If you don’t feel ready yet and
would like to review one more time click
here to return to the start of the presentation.
If you are ready click here.
Question #1When pollen is moved from the
anther to the stigma it is called?
Fertilization Pollination
Question #2Which of the following are not pollinators?
Birds Bees
Wind Cats
Question #3The joining of the female sex
cell (the ovule) and the male sex cell (the pollen cell) is called?
Fertilization Pollination
Question #4What forms to allow the pollen to move to the
ovary?Pollen Tube Egg
Seed Anther
Question #5What forms after the
ovule is fertilized?
Pollen Tube Egg
Seed Anther
#1 Correct!During the process of pollination a pollen cell (male sex cell) from the
anther of the stamen must be moved to the stigma of
the pistil.Back to Quiz
#2 Correct!Pollination occurs with the help of
Pollinators like….• Bees
• Butterflies• Birds
• Other insectsWind also helps pollination occur by
carrying pollen from one flower to another
Back to Quiz
#3 Correct!Once in the ovary the pollen
cell ( male sex cell) can join with the ovules (female egg cell). The joining of these two sex cells is called fertilization.
Back to Quiz
#4 Correct!• First a pollen tube is created
that allows the pollen to move down the style of the pistil to the ovary.
Back to Quiz
#5 Correct!• Once the ovule is fertilized a
seed will develop!
#1 Incorrect!Once in the ovary the pollen
cell ( male sex cell) can join with the ovules (female egg cell). The joining of these two sex cells is called fertilization.
Back to Quiz
#2 Incorrect!Pollination occurs with the help of
Pollinators like….• Bees
• Butterflies• Birds
• Other insectsWind also helps pollination occur by
carrying pollen from one flower to another
Back to Quiz
#3 Incorrect!During the process of pollination a pollen cell (male sex cell) from the anther of the stamen must be moved to the stigma of the
pistil.
Back to Quiz
#4 Incorrect!• A pollen tube is created that
allows the pollen to move down the style of the pistil to the ovary.
Back to Quiz
#5 Incorrect!• Once the ovule is fertilized a
seed will develop!
Back to Quiz
Congrats!
You have completed your Pollination
& Fertilization
Quiz!