pollination & fertilization mrs. taylor 6 th grade science

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!