Basic 6.7: Dispersal of seeds

Fruits and seeds
Ovary becomes the fruit
Ovules become the seeds
Fertilised egg cell becomes the plant embryo
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Slide 1: Diapositive
BiologieMiddelbare schoolvwoLeerjaar 1

Cette leçon contient 14 diapositives, avec quiz interactifs et diapositives de texte.

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Fruits and seeds
Ovary becomes the fruit
Ovules become the seeds
Fertilised egg cell becomes the plant embryo

Slide 1 - Diapositive

Which flower(s) can grow a fruit?
A
Flower X
B
Flower Y
C
Both
D
None of the two

Slide 2 - Quiz

In which case do we eat the fruit of a plant?
A
Tomato
B
Brown bean
C
Peanut

Slide 3 - Quiz

Here you see a green bean with its seeds. How many pollen grains were needed for this bean? Explain your answer.

Slide 4 - Question ouverte

In the picture you can see a pepper. Does this pepper have plant embryo's? Explain your answer.

Slide 5 - Question ouverte

How many fruits can grow from this flower?
A
1
B
7
C
0
D
Impossible to tell

Slide 6 - Quiz

Basic 5: dispersal of seeds
Seeds can disperse through three different ways:
  1. Through the wind
  2. Through animals
  3. Through themselves

Slide 7 - Diapositive

Wind dispersal
Seeds are dispersed / spread through wind
  • Light
  • Wings / fluffs

Slide 8 - Diapositive

Animal dispersal
  • Small hooks
  • Fruit pulp

Slide 9 - Diapositive

Dispersal by plants themselves
  • Fruits burst open

Slide 10 - Diapositive

How is this seed dispersed? Explain your answer.

Slide 11 - Question ouverte

This fruit does not have fruit pulp. Why?

Slide 12 - Question ouverte

The native North Americans called this plant ‘white man’s footsteps’ because these plants grew where the colonists walked. What kind of seeds do these plants have?

A
Big seeds
B
Light weight seeds
C
Seeds with fluffs
D
Sticky seeds

Slide 13 - Quiz

The end!

Slide 14 - Diapositive