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Introduction to Plants

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Introduction to Plants Standard Grade Biology Reproduces sexually Ash Tree Nettle Also reproduces through vegetative propagation Parts of a Flower Introduction to ... – PowerPoint PPT presentation

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Title: Introduction to Plants


1
Introduction to Plants
  • Standard Grade Biology

2
Reproduces sexually
Larch
Larch cone containing seeds
3
Ash Tree
Reproduces sexually
Seed cases known as keys
4
Nettle
Has flowers
Also reproduces asexually vegetative propagation
5
Also reproduces through vegetative propagation
Marsh Buttercup
Has flowers
Reproduces sexually and asexually
6
Parts of a Flower
Petal
Stigma
Style
Anther
Stamen
Filament
Ovary
Nectary
Ovule
Flower stem
Sepal
7
Flower Part Part Function
Petal These are used to attract insects into the flower, they may have guidelines on them and be scented.
Stigma Is covered in a sticky substance that the pollen grains will stick to.
Style It raises the stigma away from the ovary to decrease the likelihood of pollen contamination. It varies in length.
Ovary Ovules are produced inside this.
Ovule This will become a seed once fertilisation has taken place.
Stamen This is the collective name for the anther and the filament.
Flower Stalk Gives support to the flower and elevates the flower for the insects.
Nectary This is where a sugary solution called nectar is produced.
Sepal These protect the flower whilst the flower is developing from a bud.
Filament This is the stalk of the anther.
Anther Pollen is produced here.
8
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