The importance of flowers
Explain the importance of sexual reproduction
Task 15
Use this website to get information in order to complete the paragraph:
http://www.biotopics.co.uk/genes1/asexual_and_sexual_reproduction.html
In some cases the first letter has been given to you.
Sexual reproduction requires X parents (X and X). In sexual reproduction two special cells called g fuse together to make new offspring. The offspring they produce are genetically X. This means that the offspring have genetic v. This allows some individuals to survive if the environment changes, allowing the species to survive and allows for e to happen. However, this process is s and takes lots of energy.
Describe and explain the structure of a flower
Reference: SW9 Pg 116
Task 16
The flower is the sexual reproduction organs in a plant.
Use this site to help you label the diagram
http://www.familymanagement.com/holidays/flowers/flower_anatomy.html
Explain the importance of sexual reproduction
Task 15
Use this website to get information in order to complete the paragraph:
http://www.biotopics.co.uk/genes1/asexual_and_sexual_reproduction.html
In some cases the first letter has been given to you.
Sexual reproduction requires X parents (X and X). In sexual reproduction two special cells called g fuse together to make new offspring. The offspring they produce are genetically X. This means that the offspring have genetic v. This allows some individuals to survive if the environment changes, allowing the species to survive and allows for e to happen. However, this process is s and takes lots of energy.
Describe and explain the structure of a flower
Reference: SW9 Pg 116
Task 16
The flower is the sexual reproduction organs in a plant.
Use this site to help you label the diagram
http://www.familymanagement.com/holidays/flowers/flower_anatomy.html
1 X
2 X
3 X
4 X
5 X
6 X
7 X
8 X
The male parts of the flower are the X and the X. Together they are called the X. This is where the male gamete called X is produced.
The female parts of the flower are the X, the X and the X. The female gamete called the X is produced here.
See how good you are using this site. Click on the “Parts of a Flower” section
http://www.bgfl.org/custom/resources_ftp/client_ftp/ks2/science/plants/index.htm
Do SciPad Pg 131, 133-135
Task 17
You will dissect a flower. Take a photo of the ovary with the ovules in place and paste it here.
Feel the base of the petals where they join the sepals. What does it feel like? X
This is because there is nectar produced here. What is nectar? X
The organ that produces nectar is the nectary. Add a label for the nectary on the diagram above.
Describe pollination and pollinators
Pollination is when the pollen moves from the anther of a flower to the stigma of another flower.
Pollen needs to get from one flower to another but plants can’t move around. The plant needs something else to carry the pollen for it.
Task 18
Watch this video:
http://www.youtube.com/watch?v=zy3r1zlC_IU
How does the pollen move from one flower to the other? X
What attracts the bee to the flower? X
What other things do you think the flower has that will attract the bee to the flower? (Hint: think why you like flowers) X
There is one other thing plants can use apart from animals (like insects) to carry their pollen. What is it? X
On the internet, find pictures of flowers that are pollinated by these two methods and paste them here and give them a label.
SciPad Pg 137-138
Task 19
Compare the two types of flowers and fill in the table
Wind pollination
Petals (size/colour/scent) X
Size of anther X
Size of stigma X
Animal pollination
Petals (size/colour/scent) X
Size
of anther X
Size of stigma X
Explain why flowers that aren’t animal pollinated need to have the structures you see.
X
Distinguish between pollination and fertilisation
Task 20
Watch this video:
http://www.youtube.com/watch?v=YqM6rgB_l_o
What is fertilisation? X
Explain why fertilisation happens after pollination. X
Write a paragraph explaining pollination and fertilisation. In you answer you should include:
what pollination is and why do plants need to do it.
SciPad Pg 139
2 X
3 X
4 X
5 X
6 X
7 X
8 X
The male parts of the flower are the X and the X. Together they are called the X. This is where the male gamete called X is produced.
The female parts of the flower are the X, the X and the X. The female gamete called the X is produced here.
See how good you are using this site. Click on the “Parts of a Flower” section
http://www.bgfl.org/custom/resources_ftp/client_ftp/ks2/science/plants/index.htm
Do SciPad Pg 131, 133-135
Task 17
You will dissect a flower. Take a photo of the ovary with the ovules in place and paste it here.
Feel the base of the petals where they join the sepals. What does it feel like? X
This is because there is nectar produced here. What is nectar? X
The organ that produces nectar is the nectary. Add a label for the nectary on the diagram above.
Describe pollination and pollinators
Pollination is when the pollen moves from the anther of a flower to the stigma of another flower.
Pollen needs to get from one flower to another but plants can’t move around. The plant needs something else to carry the pollen for it.
Task 18
Watch this video:
http://www.youtube.com/watch?v=zy3r1zlC_IU
How does the pollen move from one flower to the other? X
What attracts the bee to the flower? X
What other things do you think the flower has that will attract the bee to the flower? (Hint: think why you like flowers) X
There is one other thing plants can use apart from animals (like insects) to carry their pollen. What is it? X
On the internet, find pictures of flowers that are pollinated by these two methods and paste them here and give them a label.
SciPad Pg 137-138
Task 19
Compare the two types of flowers and fill in the table
Wind pollination
Petals (size/colour/scent) X
Size of anther X
Size of stigma X
Animal pollination
Petals (size/colour/scent) X
Size
of anther X
Size of stigma X
Explain why flowers that aren’t animal pollinated need to have the structures you see.
X
Distinguish between pollination and fertilisation
Task 20
Watch this video:
http://www.youtube.com/watch?v=YqM6rgB_l_o
What is fertilisation? X
Explain why fertilisation happens after pollination. X
Write a paragraph explaining pollination and fertilisation. In you answer you should include:
what pollination is and why do plants need to do it.
- the ways plants get pollinated.
- the differences in the flowers depending on the way they are pollinated.
- what fertilisation is and why it happens after
- pollination.
SciPad Pg 139