reproduction flowering school
DESCRIPTION
Is a PowerPoint of the flowers and it's made by a child.TRANSCRIPT
![Page 1: Reproduction flowering school](https://reader033.vdocuments.net/reader033/viewer/2022050722/559458421a28ab5e2f8b477e/html5/thumbnails/1.jpg)
Reproduction in Flowering Plants
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The parts of a Flower
Most flowers have four parts:
- Sepals
- Petals
- Stamens
- carpels
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The parts of a flower
Sepals protect the bud until it opens.
Petal attract insects.
Stamens make pollen.
Carpels grow into fruits
which contain the seeds.
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Stamen (male)
Anther-pollen grains grow in the anther.
When the grains are fully grown, the anther splits open.
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Pistil (female)
Stigma
Style
Carpel (ovary)
Ovules (eggs)
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Pollination
Flowering plants use the wind, insects, bats, birds and mammals to transfer pollen from the male (stamen) part of the flower to the female (stigma) part of the flower.
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Pollination
A flower is pollinated when a pollen grain lands on its stigma.
Each carpel grows into a fruit which contains the seeds.
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Fertilisation
Pollen grains germinate on the stigma, growing down the style to reach an ovule.
Fertilised ovules develop into seeds.
The carpel enlarges to form the flesh of the fruit and to protect the ovary.
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Wind pollination
Some flowers, such as grasses, do not have brightly coloured petals and nectar to attract insects.
They do have stamens and carpels.
These flowers are pollinated by the wind.
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Seed dispersal
Seeds are dispersed in many different ways:
-Wind -Explosion -Water -Animals -Birds -Scatter
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How birds and animals help seed dispersal
Some seeds are hidden in the ground as a winter store.
Some fruits have hooks on them and cling to fur or clothes.
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How birds and animals help seed dispersal
Birds and animals eat the fruits and excrete the seeds away from the parent plant.
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