1. Sexual Reproduction in Plants: The Flower
Most flowering plants reproduce sexually, and the flower is the plant's reproductive structure. Just like animals, plants have separate male and female parts that produce sex cells (gametes).
Parts of a Flower
Key term: Ovule — the structure inside a plant's ovary that contains the female sex cell (egg cell) and develops into a seed after fertilisation.
2. Pollination: Getting Pollen to the Stigma
Pollination is the transfer of pollen from the anther of a flower to the stigma of a flower. It's important to know that pollination is NOT the same as fertilisation — pollination is just the pollen being transferred; fertilisation happens afterwards, when the male and female sex cells actually join.
Insect Pollination vs Wind Pollination
Plants have evolved very different flower designs depending on how they get pollinated.