U6 B2 1HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

B2 Pollination

• Take off your jacket
• Put your things on your desk

       Book, notebook, pencil case

• Bag on the floor
  
• Read pages 171-173

Lessongoals

• You can describe what pollination is.
• You can explain the difference between cross-pollination and self-pollination
• You can list the features of insect-pollinated flowers and wind-pollinated flowers.

Homework U6 B2

Asgmt 1-6, 4c

OR challenge

Asgmt 5-8, 4c

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

Pollen is made in ...

1. The anther
2. The ovary
3. The filament
4. The ovule

What is the name of the big and coloured leaves of a flower?

1. Kepals
2. Petals
3. Setals
4. Sepals

What part of a carpel is closest to the sepals?

1. Style
2. Stem
3. Stigma
4. Ovary

Pollination

= The moment pollen lands on the stigma 

of a flower of the same species.

If pollen lands on the stigma of a 

different species > NO pollination

Pollen is made in pollen sacs, inside the anther

1

Pollen is brought to other flowers with the help of insects or the wind

2

Pollen lands on the stigma from a flower of the same species = pollination

3

Pollen lands on the stigma of:

• different flower on same plant
• same flower 

Pollen lands on the stigma of a flower on a different plant of the same species

Self-pollination

Cross-pollination

cross-pollination

self-pollination

self-pollination

How does pollen go from one flower to another?

Sometimes people help plants pollinate.
They use a small brush (kwastje) to take some pollen from the anthers of a flower. Then they brush the stigma of the flower they want to pollinate.

Jack wants to try this himself. He brushes the anthers of a sunflower, then he walks to a daisy and brushes the stigma.
What will happen?

1. The daisy has been pollinated
2. The sunflower has been pollinated
3. Nothing

Jack wants tries this a second time. He brushes the anthers of a sunflower, then he walks to a sunflower and brushes the stigma.
What will happen?

1. The sunflower has been cross-pollinated
2. The sunflower has been self-pollinated
3. Nothing

	Insectflower	Windflower
Flower	Big, attractive, nectar	Small, inconspicuous
Petal	Big, colourful	Small, green
Carpel/ Stamen	Inside the flower	Outside the flower
Pollination	Insects take pollen from one flower to another	Wind takes pollen from one flower to another

What you should do: U6 B2

• Pages  171-176
• Asgmt  1-6, 4c

OR challenge

• Asgmt 5-8, 4c

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do: U6 B2

• Pages 171-176
• Asgmt 1-6, 4c

OR challenge

• Asgmt 5-8, 4c

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk

Tidy Duty

Today these people are on tidy duty

• Desks: empty and straight
• Chairs:  underneath the desks
• Floor: no rubbish