Parts of a Flower PA Standards

4- Parts of a Flower Stamens Stamens 1- Male reproductive organs

Stamens 2) Have two parts Filament- stalk Anther- where pollen is made

Pollen released into the air Pollen grain forming on anther

Stamen Flower Parts

Flower Parts Anthers

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 parts

Pistil ovary Ovules growing in the ovary

Pollen sticking to the pistil’s stigma. Pistil Stigmas

Pistil Flower Parts

Flower Parts Stigma Style Ovary

Sepals & Petals C) Sepals- Leaflike parts that protect the flower. d) Petals – Attract pollinators.

Flower Parts Petal Sepal

How does pollen get from the stamen to the pistil? Insect Pollinators Wind

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.

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PISTIL Flower Parts STAMEN Stigma Style Petal Anther Filament Ovary Sepal

Pistil Flower Parts Stamen Stigma Style Petal Anther Filament Ovary Sepal

Flower Parts