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B3 Fertilisation
B3 Fertilization
6.3.5 You can describe the fertilization process in seed plants.
6.3.6 You can describe the change in the ovule after fertilization.
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Biologie
Middelbare school
havo, vwo
Leerjaar 1
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Lesson duration is:
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B3 Fertilization
6.3.5 You can describe the fertilization process in seed plants.
6.3.6 You can describe the change in the ovule after fertilization.
Slide 1 - Slide
Stigma
Style
Petal
Stamen
Sepal
Ovary
Slide 2 - Drag question
Insect-pollinated flowers
Wind-pollinated flowers
Colourful petals
small, green petals
Flowers contain nectar
no nectar
Stamen outside the flowe
Stamen inside the flower
Stigma inside the flower
Stigma outside the flower
Stigma is feathershaped
Pollen is sticky
Stuifmeel is licht en glad
Slide 3 - Drag question
1 uai 8 : Pollination?
Self-pollination or cross-pollination?
Slide 4 - Slide
Basic 3 : Fertilization
Slide 5 - Slide
Pollination; an experiment
Slide 6 - Slide
Slide 7 - Slide
Result
Slide 8 - Slide
Pollen tube
When a pollen grain lands on the stigma of a plant of the same species, a tube starts to grow from it:
t
he pollen tube
Slide 9 - Slide
Fertilization
The fusion of the nuclei of a male sex cell and a female sex cell is called fertilization.
Fertilization produces an embryo. The nucleus of a plant embryo contains the chromosomes of both the male and female sex cells.
Slide 10 - Slide
Every seed contains a plant embryo
Slide 11 - Slide
Basic 3 : Fertilization
Read basic 3
timer
5:00
Slide 12 - Slide
Basic 3 : Fertilization
Do exercise 1 u.a.i. 3 + 5
timer
10:00
First 10 minutes in silence
Slide 13 - Slide
Zet in de goede volgorde
-->
Stuifmeelkorrel komt vrij
Bevruchting
Kiem (plant embryo) ontstaat)
Vruchtbeginsel
Bestuiving
Zaad wordt gevormd
DNA bereikt zaadbeginsel
Stuifmeelbuis groeit
Slide 14 - Drag question
Na de bevruchting gaan de bevruchte eicel, het zaadbeginsel en het vruchtbeginsel groeien.
1.Uit de bevruchte eicel ontstaat een kiem.
2. Uit het zaadbeginsel ontstaat een zaad.
3. Elk zaad bevat één kiem.
Slide 15 - Slide
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