Year 7 Flowering plant reproduction J.Maden De Lisle Catholic Science College Science department Key...
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![Page 1: Year 7 Flowering plant reproduction J.Maden De Lisle Catholic Science College Science department Key stage 3.](https://reader034.fdocuments.us/reader034/viewer/2022042623/551a5177550346a4248b60e4/html5/thumbnails/1.jpg)
Year 7 Flowering plant reproduction
J.Maden
De Lisle Catholic Science CollegeScience department
Key stage 3
![Page 2: Year 7 Flowering plant reproduction J.Maden De Lisle Catholic Science College Science department Key stage 3.](https://reader034.fdocuments.us/reader034/viewer/2022042623/551a5177550346a4248b60e4/html5/thumbnails/2.jpg)
Flowering plant reproduction explorer
Click here to see all of
the presentation
Click here to godirectly to plant
pollination
Click here to go directly to
fertilisation
Click here to go directly to
seeds
![Page 3: Year 7 Flowering plant reproduction J.Maden De Lisle Catholic Science College Science department Key stage 3.](https://reader034.fdocuments.us/reader034/viewer/2022042623/551a5177550346a4248b60e4/html5/thumbnails/3.jpg)
Plant parts
Terminal bud
Leaf
Lateral bud
Stem
Tap root
Lateral root
Leaf stalk
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Ovaries Anthersfemale reproductive parts male reproductive parts
egg cells pollen cells
one egg cell one pollen cell
Embryo Plant
Cell division
Fertilisation (nuclei join)
Seed
Sexual reproductionin plants
Cell division
Cell division
Cell division
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Parts of a flowerPetals
Stamens
Carpel
Sepals
Stalk
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Female flower parts - carpel
Stigma
Style
Ovary containing egg cells
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Male flower parts - stamen
Anther with top cut off
Pollen cells inside pollen sac
Filament
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Flower part Job of part
Petals
Stamens(filament & anther)
Pollen cell
Carpel(stigma, style & ovary)
Ovule (egg cell)
Attract insects
Produce pollen cells
Fertilise the egg cells
Produce egg cells
Forms a seed when fertilised by pollen
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Pollen cells
Sticky pollen
Spiky pollen
Air sac on pollen cell
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Insect cross pollination 1
Flower A : Anthers fully developed and releasing pollen. Stigma not yet developed
and unable to receive pollen
Ripe anther releasing pollen
onto insect
Unripe stigma
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Insect cross pollination 2
Flower B : Anthers withered, no pollen left. Stigma fully developed and now able to receive pollen
Stigma receiving pollen cells from
body of insect
Withered anthers
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Wind pollination – grass flowers
Large feathery stigma
Small dull petals
Large droopy stamens
Light powdery pollen cells
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Wind pollination – catkins
Anthers
Cluster of male flowers
Stigma of female flower
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Flower part Insect pollination
Wind
pollination
Petal size
Petal colour
Scent
Nectary
Stamens
Pollen
Stigma
SmallLarge
Bright Dull
NoYes
Yes No
Upright Droopy
Light/powderySticky/ Spiky
Inside flower Sticks out
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Fertilisation of flower egg cells
Egg cell about to be fertilised by pollen
cell nucleus
Ovary
Spiky pollen cell germinating the on
stigma
Pollen tube
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Fruit formation
Fertilised flower
Petals, stamens, and stigma wither
Seeds develop inside the
swelling ovary
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Seed structure
Testa seed coat
Cotyledons food store
Embryo
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Seed germination
Radicle first root
First leaves
Plumule first shoot
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Seed dispersal - animals
Strawberry
Cleaver
Oak
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Seed dispersal wind
Clematis
Dandelion Sycamore
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Seed dispersal - self
GeraniumPoppy
Lupin
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Year 7Flowering plant reproduction
The end
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