3.3 a - Insect Pollination

- Pollinating flower - transfer of pollen grain from the anther of one plant to the stigma of another 
- Pollen - small structure contains male nuclei 
- Insects transfer 
- First flower needs to attract insect and have reason to go the the second 
- Cross pollination - when pollen goes from one plant to the other 
- Attraction Adaptation - Insect
   - Signals - Colour petals
                    - Scents 
   - Value - Food - Nectaries produces fructose 
                 - Pollen - Source of protein 


Structure - Petals
                 - Stamen (male part of the plant) - Anther (pollen grains), Filament 
                 - Carpel (female Part of the plant) - Stigma, Style and Ovary (ovules)