This lesson teaches you the parts of a flower along with reproduction in flowering plants.
1) Asexual reproduction
2) Sexual reproduction
Here, we are going to discuss about the ‘sexual reproduction’.
1) Flowering plants
2) Non-flowering plants
Flowering plants are the plants which bear flowers.
Non-flowering plants are the plants which don’t bear flowers.
Sex cells are used by flowering plants to do sexual reproduction. In flowering plants the ‘flower’ is the structure which bears sex cells.
1) Male sex cells (also called male gametes)
2) Female sex cells (also called female gametes or eggs)
The process of joining a tiny male sex cell with a female sex cell and producing seeds in flowers.
Sexual reproduction takes place in flowers of a plant.
The female reproductive part of a flower is called the Pistil.
Pistil contains 3 parts.
The stigma is covered in a sticky substance. Its job is to catch the pollen grains. These pollen grains can stick to stigma.
The style is the stalk like thing that holds up the stigma.
Ovary holds ‘ovules’ or eggs. Ovules produce female sex cells.
The male reproductive part of a flower is called the stamen.
Stamen contains 2 parts.
Anther holds a yellow dust called pollen grains.n Each pollen grain has a male sex cell.
Filament holds up the anther.
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.
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.
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.
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.
May 4, 2013