Introduction to PlantsIntroduction to Plants

Standard Grade BiologyStandard Grade Biology

Reproduces sexuallyReproduces sexually

Larch cone containing seeds

LarchLarch

Ash TreeAsh Tree Reproduces Reproduces sexuallysexually

Seed cases known Seed cases known as ‘keys’as ‘keys’

NettleNettle

Also Also reproduces reproduces asexually asexually vegetative vegetative

propagationpropagation

Has Has flowersflowers

Also Also reproduces reproduces

through through vegetative vegetative

propagationpropagation

Marsh ButtercupMarsh Buttercup

Reproduces Reproduces sexually and sexually and

asexuallyasexually

Has flowersHas flowers

Parts of a FlowerParts of a Flower

Petal

Nectary

Ovary

StigmaStyle

Sepal

Anther

Ovule

Filament

Flower stem

Stamen

Flower Part

Part Function

Petal These are used to attract insects into the flower, they may These are used to attract insects into the flower, they may have guidelines on them and be scented. have guidelines on them and be scented.

Stigma Is covered in a sticky substance that the pollen grains will Is covered in a sticky substance that the pollen grains will stick to. stick to.

Style It raises the stigma away from the ovary to decrease the It raises the stigma away from the ovary to decrease the likelihood of pollen contamination. It varies in length.likelihood of pollen contamination. It varies in length.

Ovary Ovules are produced inside this.Ovules are produced inside this.

Ovule This will become a seed once fertilisation has taken place. This will become a seed once fertilisation has taken place.

Stamen This is the collective name for the anther and the filament.This is the collective name for the anther and the filament.

Flower Stalk

Gives support to the flower and elevates the flower for the Gives support to the flower and elevates the flower for the insects.insects.

Nectary This is where a sugary solution called nectar is produced. This is where a sugary solution called nectar is produced.

Sepal These protect the flower whilst the flower is developing These protect the flower whilst the flower is developing from a bud. from a bud.

Filament This is the stalk of the anther.This is the stalk of the anther.

Anther Pollen is produced here.Pollen is produced here.

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