Presentation on theme: "Parts of a Flower PA Standards. 4- Parts of a Flower a) Stamens 1- Male reproductive organs Stamens."— Presentation transcript:
Parts of a Flower PA Standards
4- Parts of a Flower a) Stamens 1- Male reproductive organs Stamens
2) Have two parts Filament Anther Filament- stalk Anther- where pollen is made
Pollen released into the air Pollen grain forming on anther
Stamen Flower Parts
Flower Parts Filament
4- Parts of a Flower b) Pistils 1- Female reproductive organs Pistil
2) Pistils have three parts Ovary – produces ovules (female gametes) Style – short stalk Stigma – sticky extension of stalk that catches pollen.
Pistil ovary Ovules growing in the ovary
Pistil Stigmas Pollen sticking to the pistil’s stigma.
Flower Parts Pistil
Flower Parts Stigma Style Ovary
Sepals & Petals C) Sepals- Leaflike parts that protect the flower. d) Petals – Attract pollinators.
Flower Parts Sepal Petal
How does pollen get from the stamen to the pistil?
Humans can also selectively pollinate flowers: Taking pollen from one plant with a certain trait and placing it on a plant with a different trait. For example, taking pollen from a short plant and placing it on a plant that is tall. Cross pollination
Seed & Fruit Production a) After pollen lands on stigma a tube grows down the style to an ovule.
Seed & Fruit Production b) The fertilized zygote develops into a seed.
Seed & Fruit Production c) The ovary that surrounds the ovules develops into a fruit.
Seed & Fruit Production c) The ovary that surrounds the ovules develops into a fruit (if the fruit dries out it becomes a shell). Produces nuts, grains Acorns, etc.
Tomato flower develops into fruit.
Flower Parts Sepal PetalSTAMENPISTILStigmaStyleAnther Ovary Filament
Flower Parts Sepal PetalStamenPistil Stigma Style Anther Ovary Filament