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A Comprehensive Guide to Homeschooling

Parts of a Flower


 

This lesson teaches you the parts of a flower along with reproduction in flowering plants.

 

There are two types of reproduction in plants.

 

1)   Asexual reproduction

asexual-reproduction

 

2)   Sexual reproduction

sexual reproduction of a flower

 

 

Here, we are going to discuss about the ‘sexual reproduction’.

 

There are mainly two types of plants.

 

1)   Flowering plants

flowering-plants

 

 

2)   Non-flowering plants

 example of none flowering plant

 

 

What are flowering plants?

Flowering plants are the plants which bear flowers.

 

What are non-flowering plants?

Non-flowering plants are the plants which don’t bear flowers.

 

Sexual reproduction takes place in flowering plants.

 

 

Sex cells

 

What are sex cells?

Sex cells are used by flowering plants to do sexual reproduction. In flowering plants the ‘flower’ is the structure which bears sex cells.

 

What are the two types of sex cells?

 

1)   Male sex cells (also called male gametes)

2)  Female sex cells (also called female gametes or eggs)

 

What is sexual reproduction?

The process of joining a tiny male sex cell with a female sex cell and producing seeds in flowers.

In which part of the plant does sexual reproduction take place?

Sexual reproduction takes place in flowers of a plant.

 

parts of a flower

 

 

Female and male reproductive parts of a flower

 

Pistil

The female reproductive part of a flower is called the Pistil.

 

Pistil contains 3 parts.

 

a)   Stigma

b)   Stile

c)   Ovary

 

Stigma

The stigma is covered in a sticky substance. Its job is to catch the pollen grains. These pollen grains can stick to stigma.

 

Style

The style is the stalk like thing that holds up the stigma.

 

Ovary

Ovary holds ‘ovules’ or eggs. Ovules produce female sex cells.

 

pistil

 

 

Stamen   

The male reproductive part of a flower is called the stamen.

 

Stamen contains 2 parts.

 

a)   Anther

b)   Filament

 

Anther

Anther holds a yellow dust called pollen grains.n Each pollen grain has a male sex cell.

 

Filament

Filament holds up the anther.

 stamen

Other parts of a flower

 

Petals

flower petals

 

Petals are often very brightly coloured. This is because their main job is to attract insects, such as bees or butterflies, into the flower. These insects pick up pollen from the flower, and carry it to the next flower they visit. This is how most flowers are pollinated.

 

petal

 

Sepals

Sepals are special types of leaves that form a ring around the petals. Their job is to protect the flower while it is still a bud. After the flower has opened, the sepals can still be seen behind the petals. Sepals are usually green or brown, although in some plants they are the same colour as the petals.

 

 sepal

 

Nectaries

The nectaries are the parts of a flower that make nectar. Nectar is a sweet substance, which insects drink to give them energy. Bees also use nectar to make honey. The nectaries are usually right in the centre of the flower. This means the insects have to reach deep into the flower to find the nectar. As they do so, their bodies pick up pollen from the anthers, and they carry it to the next flower they visit.

 nactaries

 

 

Receptacle

The receptacle is the top part of the flower stalk, where the parts of the flower are attached. It is often rounded in shape. All the parts of the flower are attached to the receptacle.

 

receptacle