Basic 6.7: Dispersal of seeds

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Fruits and seeds

Ovary becomes the fruit

Ovules become the seeds

Fertilised egg cell becomes the plant embryo

Which flower(s) can grow a fruit?

1. Flower X
2. Flower Y
3. Both
4. None of the two

In which case do we eat the fruit of a plant?

1. Tomato
2. Brown bean
3. Peanut

How many fruits can grow from this flower?

1. 1
2. 7
3. 0
4. Impossible to tell

Basic 7: dispersal of seeds

Seeds can disperse through three different ways:

1. Through the wind
2. Through animals
3. Through themselves
   

Wind dispersal

Seeds are dispersed / spread through wind

• Light
• Wings / fluffs
  

Animal dispersal

• Small hooks
  
• Fruit pulp
  

Dispersal by plants themselves

• Fruits burst open
  

How is this seed dispersed? Explain your answer.

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?

1. Big seeds
2. Light weight seeds
3. Seeds with fluffs
4. Sticky seeds

The end!