Presentation on theme: "The stages of fertilisation in a flowering plant"— Presentation transcript:
1 The stages of fertilisation in a flowering plant
2 Structures in a flowerStigma – the female part of a flower where pollen grains landAnther – the male part of the flower that contains pollen grains, the male gameteStyle – the female part of a flower that connects the stigma to the ovaryOvary – the female part of the flower that contains the female gametes, the ovulesOvule – the female sex cellFilament – the male part of the flower that holds up the anthers
3 The stages of pollination A pollen grain from the same or a different flower, lands on the stigma.
4 The stages of pollination The pollen grain on the stigma stimulates a pollen tube to start forming.The pollen tube grows down the style.The pollen grain nucleus travels down the pollen tube.
5 The stages of pollination The pollen tube continues to grown until it reaches the ovary.The pollen tube grows into the ovary and fuses with an ovuleThe male gamete nucleus fuses with the female gamete (ovary).This results in fertilisation of the flower.
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