6.2 - Pollination

• Biologie
• Middelbare school
• havo
• Leerjaar 1

Basic 6.2 : Pollination
+ Practical 3  (parts of a flower)

What's good? What could be better? 

What's good? What could be better? 

What's good? What could be better?

Herkansers van bloem tekenen H1a 

Afbeelding van Lelie en doorsnede staan in de Studiewijzer - Thema 6 

Amina, Bruno, Eline, Hanae, Tim, Samara, Lieke, Lennard, Nicke, Igor, Keetie, Hugo, Wessel, Oscar, Chloé, Della, Seb (opnieuw), 

Herkansers van bloem tekenen H1b

Afbeelding van Lelie en doorsnede staan in de Studiewijzer - Thema 6 

Jet, Ella, Pablo, Afand, Mekz, Ties, Julia, Ruby, Lennard, Arda. 

Mara & Elin. (op foto was tekening nog niet af), 

How can pollen of one flower reach another flower?

Insect pollination

Wind pollination

Pollination = transfer of pollen grains from an anther to a stigma of a flower of the same species 

self-pollination = same plant;    cross-'' is with another plant 

Wind pollination

• Flowers are small and inconspicuously*coloured
  - Stamen hanging out in the wind
  - Stigma's large and feather shaped*
• Don't produce nectar
• Pollen grains are very light & small

(mostly grasses and trees)

hay fever?

Pollination by animals

Which animals can
pollinate flowers?

Pollination by animals
(insectflowers) 

- large and strikingly* coloured petals (UV)

- scent and nectar.

- sticky pollen grains

nos.nl

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.

6.2 Pollination

Read: p. 171-173

Make:

1-3, if you found this difficult. 

5-8 + 10 , if you understood everything. 

Perfect flower(s)

= both sexes

Imperfect flower(s)

= one sex per flower

cross-pollination

self-pollination

male part

female part

carpel

stamen

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

Welke verschillende bestuivers?

Verschillende bestuivers

1 till 8 :  succesful or unsuccesful pollination? 

6.2 Pollination

Read: p. 171-173

Make:

1-3, if you found this difficult. 

5-8 + 10 , if you understood everything. 

Opdrachten 4.2 Bestuiven 

Toepassing en inzicht
Maken: 5-8 + 10

Praktische opdracht: een experiment

bestuderen groei van aardappel

+ zorg dat je maandag een aardappel in huis hebt!

(dan gaan we verder

met start PO)