3.4 Plant Fertilisation

• The pollen tubes will only complete if they are from the same species. 
• The nucleus travels down the pollen tube and into the ovule. 
• Pollen nucleus will fertilize the ovule and will leave to a formation of a zygote and will grow into the embryonic plant. 
• The outside of the ovule forms the seed coat also know as the TESTA. 
• Cotyledons are the food stores for the seedling and will support the plant until it develops its first set of leaves.