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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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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 - Tekstslide
Stigma
Style
Petal
Stamen
Sepal
Ovary
Slide 2 - Sleepvraag
Insect-pollinated flowers
Wind-pollinated flowers
Colourful petals
small, green petals
Flowers contain nectar
no nectar
Stamen outside the flower
Stamen inside the flower
Stigma inside the flower
Stigma outside the flower
Stigma is feathershaped
Pollen is sticky
pollen is light and smooth
Slide 3 - Sleepvraag
1 uai 8 : Pollination?
Self-pollination or cross-pollination?
Slide 4 - Tekstslide
Basic 3 : Fertilization
Slide 5 - Tekstslide
Pollination; an experiment
Slide 6 - Tekstslide
Slide 7 - Tekstslide
Result
Slide 8 - Tekstslide
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 - Tekstslide
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 - Tekstslide
Every seed contains a plant embryo
Slide 11 - Tekstslide
Basic 3 : Fertilization
Read basic 3
timer
5:00
Slide 12 - Tekstslide
Basic 3 : Fertilization
Do exercise 1 u.a.i. 3 + 5
timer
10:00
First 10 minutes in silence
Slide 13 - Tekstslide
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