Uploaded by Lulwa Khaskieh

Pollination and Fertilisation

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Remember that the flower has both
male and female parts.
Lets revise what the different parts
are called.
The Carpel
The female part of the
flower is called the Carpel.
The Stamen
The male parts of the
flower are called Stamens.
Now lets look more closely
at the Stamens
(male parts).
Anther
The top of the Stamen is
called the Anther.
Filament
The Filament acts in the
same way as a stem and
holds up the Anther.
What is the yellow powder
on the Anther?
Now lets look more closely
at the Carpel
(female parts).
Stigma
The top of the Carpel is
called the Stigma. What do
you notice when you touch
it?
Style
The Style acts in the same
way as a stem and holds up
the Stigma.
Ovary
The ovary contains the
eggs.
Learning Objectives
To understand how new seeds are
formed.
To understand the terms pollination
and fertilisation.
With your talk partner
discuss what you think the
term pollination might mean?
Pollination occurs when the pollen
from the anther (male part) is
transferred onto the stigma (female
part)
pollen
What do you remember
about the stigma?
stigma
With your talk partner discuss ways
in which the pollen might be moved
from the anther to the stigma?
Pollen sticks to insects and as they move around
the pollen sticks to the stigma.
How do flowers ensure that insects land on them?
Flowers are scented and have attractive petals to
attract insects.
During windy days the pollen ay get blown from
the anther to the stigma.
What happens next?
The style is hollow so the pollen
travels down into the ovary (female
part) where it mixes with the eggs to
produce new seeds.
pollen
seed
stigma
eggs
When the pollen mixes with the eggs
to produce a new seed this process is
called Fertilisation.
Your Task
Draw the diagram in your book
Label the important parts in
Pollination and Fertilisation
Explain what is happening at each of
the five stages
1
2
3
4
5
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