B2 - Pollination

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

Unit 6 Reproduction in plants and animals

Basic 2 Pollination

Learning objectives

6.2.2 You can describe what pollination is.

6.2.3 You can explain the difference between 

cross-pollination and self-pollination.

6.2.4 You can list the features of insect-pollinated flowers 

and wind-pollinated flowers.

Basic 2 Pollination

Nectar and pollen

• Many flowers produce nectar
• Nectar attracts insects
• Insects get covered with pollen 
• Insect goes to the next flower
• Pollen lands on the stigma of a plant of the same species
  
  

Pollination

Pollination

The transfer of pollen from a stamen to the stigma of flower of the same species.

No pollination if:

• Pollen lands on the stigma of a flower of another species

Self-pollination and cross-pollination

Cross-pollination:

Pollen can also get onto the stigmas of flowers of a different plant (of the same species)

Self-pollination:

 - Pollen from the stamens can get onto the stigma of the carpel of the same flower.

- Pollen from one flower can then get onto the stigma of another flower on the same plant.

Number 1 is...

1. Cross-pollination
2. Self-pollination
3. Geen bestuiving

Number 2 is...

1. Cross-pollination
2. Self-pollination
3. No pollination

Number 3 is...

1. Cross-pollination
2. Self-pollination
3. No pollination

Number 4 is...

1. Cross-pollination
2. Self-pollination
3. No pollination

Number 5 is...

1. Cross-pollination
2. Self-pollination
3. No pollination

Number 6 is...

1. Cross-pollination
2. Self-pollination
3. No pollination

Number 7 is...

1. Cross-pollination
2. Self-pollination
3. No pollination

Number 8 is...

1. Cross-pollination
2. Self-pollination
3. No pollination

insect-pollinated flowers

Wind-pollinated flowers

Which flowers produce more pollen? Explain your answer.

insect- and wind-pollinated flowers

Differences in:

• Size
• Petals
• Scent
• Nectar
• Pollen
• Carpels and stamen

insect-pollinated flowers

Wind-pollinated flowers

green petals

nectar

Stamen inside the flower

Produce a lot of pollen

Scent

Brightly coloured petals

Sticky pollen

Exercises

1 uai 3 + 5 uai 7 online