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Recap 7.1-7.3
Recap
one device per group
1 / 26
volgende
Slide 1:
Tekstslide
Biologie
Middelbare school
havo
Leerjaar 2
In deze les zitten
26 slides
, met
interactieve quizzen
,
tekstslides
en
3 videos
.
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Recap
one device per group
Slide 1 - Tekstslide
root
stem
flower
leaf
fruit
Slide 2 - Sleepvraag
What is the function of a flower?
A
For reproduction
B
For photosynthesis
C
For transportation
D
For looking pretty
Slide 3 - Quizvraag
What is the function of the calyx (sepals)?
A
attract insects
B
reproduction
C
protection against cold
D
producing nectar
Slide 4 - Quizvraag
What is the male sex organ of a plant? And the female sex organ?
A
female: carpel male: petal
B
female: petal male: sepal
C
female: stamen male: carpel
D
female: carpel male: stamen
Slide 5 - Quizvraag
anther
filament
petal
sepal
stigma
style
ovary
nectary
Slide 6 - Sleepvraag
What is self-pollination
Slide 7 - Open vraag
What is cross pollination?
A
Pollination in the same flower
B
When insects spread pollen
C
Pollen go brrr
D
Pollination between different flowers
Slide 8 - Quizvraag
What type of pollination is nr I?
A
Number I is self pollination
B
Number I is cross pollination
C
Number I is no pollination
Slide 9 - Quizvraag
What type of pollination is nr II?
A
Number II is self pollination
B
Number II is cross pollination
C
Number II is no pollination
Slide 10 - Quizvraag
What type of pollination is nr III?
A
Number III is self pollination
B
Number III is cross pollination
C
Number III is no pollination
Slide 11 - Quizvraag
What type of pollination is nr IV?
A
Number IV is self pollination
B
Number IV is cross pollination
C
Number IV is no pollination
Slide 12 - Quizvraag
Pollination
Self-pollination
Cross-pollination
No pollination
Number 1
Number 2
Number 3
Number 4
Slide 13 - Sleepvraag
Pollination
Self-pollination
Cross-pollination
No pollination
Number 1
Number 2
Number 3
Number 4
Slide 14 - Sleepvraag
Slide 15 - Video
Which flower spreads their pollen by wind or insects?
Slide 16 - Tekstslide
Draw and explain the three steps of fertilization
Slide 17 - Tekstslide
FERTILIZATION
THE POLLEN GRAIN LANDS ON THE STIGMA
THE POLLEN FORMS A TUBE AND THE NUCLEUS GOES DOWN THE STYLE
THE POLLEN NUCLEUS MELTS TOGETHER WITH THE EGG NUCLEUS IN THE OVULE TO FORM A SEED.
Slide 18 - Tekstslide
What happens after fertilization?
Slide 19 - Tekstslide
After fertilisation
A germ/plant embryo develops from the fertilised egg cell
The ovule develops into seeds
The ovary grows into fruit containing more seeds
pod
Slide 20 - Tekstslide
Animals eat the flesh and excrete the seeds
The fruits are provides with hooks or barbs
Seed dispersal: animals
Slide 21 - Tekstslide
Scattered by the plant itself
Seed dispersal
Slide 22 - 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 23 - Tekstslide
Slide 24 - Video
time to work
first you do the worksheet
6.2 and 6.3
do exc. 1,2.4.5.7.8
Slide 25 - Tekstslide
Slide 26 - Video
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