You can describe the steps that happen during the fertilization process in seed plants
You can describe the change in the ovule after fertilization.
Homework U6 B3
Asgmt 1-7, 4c
OR challenge
Asgmt 5-10
1 / 19
suivant
Slide 1: Diapositive
BiologieMiddelbare schoolhavo, vwoLeerjaar 1
Cette leçon contient 19 diapositives, avec quiz interactifs et diapositives de texte.
La durée de la leçon est: 45 min
Éléments de cette leçon
B3 Fertilization
Take off your jacket
Put your things on your desk
Book/Laptop
Notebook
Bag on the floor
Read pages 177-178
timer
4:00
Lessongoals
You can describe the steps that happen during the fertilization process in seed plants
You can describe the change in the ovule after fertilization.
Homework U6 B3
Asgmt 1-7, 4c
OR challenge
Asgmt 5-10
Slide 1 - Diapositive
Wheel of homework
Go to Lessonup.app and use this code
Reward
Penalty
Slide 2 - Diapositive
A carpel consists out of different parts. Which of these is NOT one of them?
A
Ovary
B
Stem
C
Style
D
Stigma
Slide 3 - Quiz
The picture shows a magnolia tree. What do you call it when a flower at spot A pollinates a flower at spot B?
A
Cross-pollination
B
Species-pollination
C
Self-pollination
D
Insect-pollination
Slide 4 - Quiz
The flowers in the picture are:
A
Windflowers
B
Birdflowers
C
Insectflowers
D
Humanflowers
Slide 5 - Quiz
Which numbers show cross-pollination?
A
Only 1
B
1, 2, 3, 4
C
1, 4, 7
D
1 and 4
Slide 6 - Quiz
Which numbers show self-pollination?
A
2, 5, 6
B
2, 3, 8
C
2, 5, 8
D
1, 3, 6
Slide 7 - Quiz
Slide 8 - Diapositive
make pollen
Pollen grains are made in the pollen sac of an anther
1
Pollination
Pollen grains land on the stigma of a flower of the same species.
2
Slide 9 - Diapositive
make pollen
Pollen grains are made in the pollen sac of an anther
1
Pollination
Pollen grains land on the stigma of a flower of the same species.
2
Pollen grains make a pollen tube
Pollen grains start making a pollen tube, they 'dig' their way towards an ovule. inside the pollen tube, they bring their nucleus.
3
Slide 10 - Diapositive
make pollen
Pollen grains are made in the pollen sac of an anther
1
Pollination
Pollen grains land on the stigma of a flower of the same species.
2
Pollen grains make a pollen tube
Pollen grains start making a pollen tube, they 'dig' their way towards an ovule. inside the pollen tube, they bring their nucleus.
3
Fertilization
Once the nucleus of the pollen grain reaches the ovule it fuses with the egg cell inside. The DNA in both nuclei is combined.
4
After fertilization
The fertilized egg cell. Will change into a plant embryo.
They ovule will change into a seed
5
Slide 11 - Diapositive
Fertilization
The moment when the nucleus of the pollen grain and nucleus of the egg cell become one.
Egg cell
Egg cell nucleus
Pollen grain nucleus
Pollen tube
Slide 12 - Diapositive
www.bioplek.org
Slide 13 - Lien
What is correct order?
A
Making pollen > pollination > fertilization > making a seed
B
Making pollen > fertilization > pollination > making a seed
C
making a seed > pollination > fertilization > Making pollen
D
pollination > Making pollen > making a seed > fertilization
Slide 14 - Quiz
multiple pollen grains land on the stigma of a buttercup (pictured): 2 of a sunflower, 5 of a buttercup and 4 of a dandelion. The ovary of the flower, contains 2 ovules.
What is the maximum amount of fertilizations that can happen in this flower? (number)