Repetition V1

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Repetition

Today

Repetition

Checklist

Tomorrow: test yourself!

Learning goals 

bs 1 and 2

1. you must be able to name the parts of a flower and its features and functions.
2. you must be able to describe what pollination is. 
3. And you must be able to tell the difference between cross-pollination and self-pollination.
4. you must be able to list the features of insect-pollinated flowers and wind-pollinated flowers. 

Flower parts with features and functions:  

kenmerken en functies   

Sepals

Petals

Stamen

Carpel

Male reproductive organ

Stigma, style and ovary

To attract insects

Produce egg cells (female sex cells) in ovum

Filaments and anther with pollen sacs

Produce pollen grains (male sex cells)

To protect the flower bud against cold and dehydration

Large and brightly coloured, sometimes small and green

Usually green

Learning goals 

bs 1 and 2

1. you must be able to name the parts of a flower and its features and functions.
2. you must be able to describe what pollination is. 
3. And you must be able to tell the difference between cross-pollination and self-pollination.
4. you must be able to list the features of insect-pollinated flowers and wind-pollinated flowers. 

Pollination

Self-pollination

Cross-pollination

No pollination

Number 1

Number 2

Number 3

Number 4

Learning goals 

bs 1 and 2

1. you must be able to name the parts of a flower and its features and functions.
2. you must be able to describe what pollination is. 
3. And you must be able to tell the difference between cross-pollination and self-pollination.
4. you must be able to list the features of insect-pollinated flowers and wind-pollinated flowers. 

Insect-pollinated flowers

Wind-pollinated flowers

The petals are coloured 

The petals are small and green

The flowers have nectar and are scented

The flowers don't have nectar

Pollen sacs are outside the flower

Pollen sacs are inside the flower

Stigma is usually inside the flower

Stigma is usually outside the flower

Stigma are feathery (geveerde vorm)

pollen grains are rough and sticky

Pollen grains are smooth and light

Has pollination and / or fertilisation happened here?

1. only pollination but no fertilisation
2. both pollination and fertilisation
3. only fertilisation, no pollination
4. no pollination and no fertilisation

In what order does fertilisation happen?

1. Pollination -> Fertilisation -> Creation of the pollen tube
2. Pollination --> Creation of the pollen tube --> Fertilisation
3. Fertilisation --> Pollination --> Creation of the pollen tube
4. Fertilisation --> Creation of the pollen tube --> Pollination

flower stalk

sepal

ovary

stamen

petal

ovule

Go to the studiewijzer

Look at the checklist and find out what you need to study. Write that down!

In your ATC e-mail

You will find a questionnaire (enquête)

It is about me

Fill it in

Go to: 1VG Flowers --> Summary / Test yourself / practise

Do: test yourself & check your answers