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10
How do plants reproduce?
Living things
Flowers are the sexual organs of a plant. Each flower has many different parts,
and each part has a function. Working together, the different parts of the flower
produce more plants.
Petal
Petals look like brightly-coloured leaves.
They protect the inner parts of the flower.
Together the petals form the
corolla
.
Sepal
Sepals are the small
green leaves that
grow at the base of
the flower. Together
the sepals form the
calyx
. The calyx
helps to protect the
flower.
Pistil
The female reproductive
organ is the pistil. It has
three main parts: the
stigma
, the
style
and
the
ovary
. The ovary
contains many
ovules
.
How many ovules can
you see in this pistil?
Stamen
The male reproductive organs
are the stamens. Each stamen
has a tube called a
filament
and a sac called an
anther
.
Each anther contains many
grains of
pollen
.
Pollen
In order for a
flowering plant
to reproduce,
the stigma
must receive
pollen from
the anther of
another plant.
The movement of pollen grains from the
anther to the stigma is called
pollination
.
Stigma
Style
Ovary
Filament
Anther
1
Why do you think that petals are usually bright colours?
G
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