2.6. A game of attraction - lesson 2

• Biologie
• Middelbare school
• vmbo t, mavo, havo
• Leerjaar 1

LESSON 14

• 2.6. A game of attraction
• Do your homework

How do we call plants who have flowers
with both male parts and female parts?

2.6. A game of attraction

• When pollen grains land on the stigma of a carpel, this is called pollinination (bestuiving). 

2.6. A game of attraction

• When pollen grains land on the stigma of a carpel, this is called pollinination (bestuiving). 
• There are two types of pollination:

2.6. A game of attraction

• When pollen grains land on the stigma of a carpel, this is called pollinination (bestuiving). 
• There are two types of pollination:
• 1. Self-pollination (zelfbestuiving) - This is when flowers pollinate themselves or another flower on the same plant. 

2.6. A game of attraction

• When pollen grains land on the stigma of a carpel, this is called pollinination (bestuiving). 
• There are two types of pollination:
• 1. Self-pollination (zelfbestuiving) - This is when flowers pollinate themselves or another flower on the same plant. 
• 2. Cross-pollination (kruisbestuiving) - This occurs when pollen is transferred from flowers on one plant to flowers of a different plant of the same species. 

2.6. A game of attraction

• Flowers that depend on insects  for pollination have to attract them. 

2.6. A game of attraction

• Flowers that depend on insects  for pollination have to attract them. 

How do flowers attract
insects?

2.6. A game of attraction

• Flowers that depend on insects  for pollination have to attract them. 
• Flowers attract insects with their brightly coloured petals and attractive smell. 

2.6. A game of attraction

• Flowers that depend on insects  for pollination have to attract them. 
• Flowers attract insects with their brightly coloured petals and attractive smell. 
• Inside the flower the insect will find nectar.

2.6. A game of attraction

• Flowers that depend on insects  for pollination have to attract them. 
• Flowers attract insects with their brightly coloured petals and attractive smell. 
• Inside the flower the insect will find nectar.
• The nectar in flowers lures other animals as well; bats and birds such as hummingbirds are especially attracted to nectar.

2.6. A game of attraction

• There are also flowers which do not produce nectar, do not have attractive smells and do not have colourful petals. 

2.6. A game of attraction

• There are also flowers which do not produce nectar, do not have attractive smells and do not have colourful petals. 
• They depend on the wind to transport their pollen grains. 

HOMEWORK

Friday 21 January

Complete the Google Form '2.6. A game of attraction' on Google Classroom