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Unit 6.4 + 6.7
Unit 6.4
Fruits and seeds
1 / 25
volgende
Slide 1:
Tekstslide
Biologie
Middelbare school
havo, vwo
Leerjaar 1
In deze les zitten
25 slides
, met
interactieve quizzen
,
tekstslides
en
4 videos
.
Lesduur is:
30 min
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Onderdelen in deze les
Unit 6.4
Fruits and seeds
Slide 1 - Tekstslide
Planning
Recap previous basics
Instruction BS6.4: fruits and seeds
Making assignments
Slide 2 - Tekstslide
Which picture shows pollination and which one fertilization?
Slide 3 - Tekstslide
Flower with both sexes
One sex per flower
cross-pollination
self-pollination
male part
female part
carpel
stamen
Slide 4 - Sleepvraag
Which numbers indicate
self-pollination?
A
1
B
1 and 4
C
1 and 3
D
1,2,3
Slide 5 - Quizvraag
wind pollinated flower
insect pollinated flower
Slide 6 - Sleepvraag
Ovary
Pollen grain
Stigma
Pollen tube
Nucleus o.a. pollen grain
Style
Ovule
Egg cell
Nucleus o.a. egg cell
Slide 7 - Sleepvraag
Learning goal
You can describe the changes in the ovary after fertilization.
Slide 8 - Tekstslide
Slide 9 - Tekstslide
Slide 10 - Video
timer
3:00
Slide 11 - Tekstslide
Ovule --> seed
Ovary --> Fruit pulp
Slide 12 - Tekstslide
flower stalk
sepal
ovary
stamen
petal
ovule
Slide 13 - Sleepvraag
Which part becomes fruit pulp after fertilisation
A
ovary
B
sepals
C
carpel
D
ovule
Slide 14 - Quizvraag
Why do plants make seeds and fruits?
Slide 15 - Tekstslide
Why do plants make seeds and fruits?
To reproduce (voortplanten)
Slide 16 - Tekstslide
Some fruits and seeds are edible
Slide 17 - Tekstslide
How are the seeds dispersed (verspreid)?
Slide 18 - Tekstslide
Dispersal of fruits and seeds
Plants disperse the seeds themselves by ejecting the seeds over a distance
Seeds are dispersed by wind
Seeds are dispersed by animals and humans
Slide 19 - Tekstslide
Slide 20 - Video
In the video you saw an example of seed dispersal by
A
the wind
B
the plant itself
C
animals
Slide 21 - Quizvraag
Which mechanism for dispersal is used by the seed shown in the picture?
A
The plant itself
B
Animals
C
The wind
Slide 22 - Quizvraag
Put the events in the right order
1
2
3
4
5
6
7
8
ovary becomes fruit
egg cell becomes plant embryo
ovule becomes seed
pollination
pollen is taken to a flower
fertilization
pollen makes pollen tube
pollen is made
Slide 23 - Sleepvraag
Slide 24 - Video
Slide 25 - Video
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