3.4 - Plant Fertilisation

Pollen grain on the stigma ->germinate( the tube grows - only the same species)

The pollen tube will go down to the ovule where the  pollen nucleus will travel there.

These things will occur :

1. Fertilisation Pollen nucleust will fertilise the Ovule -> will lead to Zygote  -> Embryonic plant

2. Outside Ovule forms a seed coast ( TESTA) 

3.Formation of the Cotyledons - food store for the seedling which will surpport the plant

4. Thickness of the walls of ovary -> plant will put alot of energy in here eg. sugar , protein ->build these up and form the fruit