Unit 11Unit 11The Parts of a FlowerThe Parts of a Flower

•If you look If you look carefully at a carefully at a flower, you will flower, you will see that it is see that it is made up of made up of many many different partsdifferent parts..

•Each part has Each part has an an important jobimportant job to do.to do.

SepalsSepals

The The sepals sepals protect protect the flower the flower before it before it opens.opens.

sepalsepal

PetalsPetals

•The The petalspetals attract attract pollinating pollinating insectsinsects with with their bright their bright colorcolor and and attractive attractive scentscent..

petalspetals

StamenStamen• The The stamensstamens are are the male part of the male part of the flower.the flower.

• The plant makes The plant makes pollenpollen in the in the top part of the top part of the stamen called stamen called thethe antheranther..

• The The filamentfilament is is the part of the the part of the stamen that stamen that holds up the holds up the anther.anther.

stamenstamen antheranther

filamefilamentnt

PistilPistil

•The The pistilpistil is the is the female part female part of the of the flower.flower.

pistilpistil

StigmaStigma

• The The stigmastigma is is the top of the the top of the pistil.pistil.

• The pollen from The pollen from another flower another flower collects on the collects on the stigmastigma’’s s sticky sticky surfacesurface..

stigmastigma

StyleStyle

• The The stylestyle is is the neck of the neck of the pistil.the pistil.

• The The pollen pollen tubetube travels travels down the down the stylestyle toward toward the the ovaryovary..

stylestyle

OvaryOvary

•The The ovaryovary is is the base of the base of the pistil.the pistil.

•The ovary The ovary protects the protects the ovulesovules..ovaryovary

Ovary ContinuedOvary Continued

• TheThe pollen pollen tubetube travels travels to the to the ovulesovules and and fertilizationfertilization takes place.takes place.

• Now the ovules Now the ovules will develop will develop into into seedsseeds..

Pollen Pollen tubetube

ovuleovule ovaryovary

5. these attract 5. these attract insectsinsects

3. where 3. where the pollen the pollen is madeis made

1. 1. pollen pollen sticks sticks to thisto this

2. where 2. where the seeds the seeds growgrow

4. these 4. these protect the protect the flower before flower before it opensit opens

Activity #1Activity #1Write the correct words in the Write the correct words in the

boxes:boxes:stamens, stigma, petals, ovary, stamens, stigma, petals, ovary,

sepalssepals

5. these attract 5. these attract insectsinsects

petalspetals

3. where 3. where the pollen the pollen is madeis made

1. 1. pollen pollen sticks sticks to thisto thisstigma

anther

2. where 2. where the seeds the seeds growgrow

ovaryovary

4. these 4. these protect the protect the flower before flower before it opensit opens

sepalssepals

Activity #1Activity #1Write the correct words in the Write the correct words in the

boxes:boxes:stamens, stigma, petals, ovary, stamens, stigma, petals, ovary,

sepalssepals

Activity #2 - Write the correct words in the Activity #2 - Write the correct words in the boxes:boxes:

stamen, stigma, petals, ovary, ovules, pollen, stamen, stigma, petals, ovary, ovules, pollen, sepals, anther.sepals, anther.

1. the male part of the flower

8. this is where pollen is made

4. insects carry this from flower to flower

2. these attract insects

3. this is the female part of the flower, which receives the pollen

6. these become seeds after fertilization

5. this is where the seeds will grow

7. these protect the flower before it opens

1. the male part of the flower

8. this is where pollen is made

4. insects carry this from flower to flower

stamen

anther pollen

2. these attract insects petals

3. this is the female part of the flower, which receives the pollenstigma

6. these become seeds after fertilization

ovules

5. this is where the seeds will grow

ovary

7. these protect the flower before it opens

sepals

Activity #2 - Write the correct words in the Activity #2 - Write the correct words in the boxes:boxes:

stamen, stigma, petals, ovary, ovules, pollen, stamen, stigma, petals, ovary, ovules, pollen, sepals, anther.sepals, anther.

Excellent Work!Excellent Work!