What Is A Flower A flower is the

What Is A Flower? A flower is the part of the plant that makes the seeds. The main parts of a flower are the carpels and stamens. These parts are often found in the center of the flower.

What Is A Flower? There are egg cells in the carpel and pollen cells in the stamen. All flowers have four basic parts: sepals, petals, carpels andstamen. Different flowers have different numbers and shapes of these parts.

A Wild Strawberry Flower

A flower is basically made up of four concentric rings of structures. There is an outer ring of modified leaves called sepals. These provide protection to the flower before it opens and are usually green. This outer ring is known as the calyx

Inside the sepals is another ring of modified leaves called petals which are often brightly coloured. This layer is known as the corolla.

A flower is basically made up of four concentric rings of structures.

The female parts of a flower consist of an ovary, which contains one or more ovules, a style and the stigma. The ovary is at the base of the flower.

From the ovary, extends a tubular structure called the style and on the top of the style is a surface receptive to pollen called the stigma. The stigma can take many different forms, most of them designed to help trap pollen. There are many variations on this basic structural theme.

The male parts of a flower consist of one or more stamens. Each stamen is made up of paired anthers (sacs containing pollen) on a filament or stalk.

The male parts of a flower consist of one or more stamens. Each stamen is made up of paired anthers (sacs containing pollen) on a filament or stalk. The anthers are the orange/yellow structures often seen in the centre of a flower. Pollen from the anthers of one flower is transferred to the stigma of another usually either by wind, or by animals, especially insects.

Flower Part Peduncle Flower stalk. Receptacle Part of flower stalk bearing the floral organs, at base of flower. Sepal Leaf-like structures at flower base, protects young flower bud. Calyx All the sepals together form the calyx. Petal Located in and above the sepals, often large and colourful, sometimes scented, sometimes producing nectar. Often serve to attract pollinators to the plant. Corolla All the petals together form the corolla.

Flower Part Stamen Male part of the flower, consisting of the anther and filament, makes pollen grains. The stalk of the stamen which ) Filament bears(���� the anther. Anther The pollen bearing portion of a stamen. Pollen Grains containing the male gametes. Immature male gametophyte with a protective outer covering.

Flower Part CarpelPistil Female part of the flower. Consisting of the stigma, style and ovary. Stigma Often sticky top of carpel, serves as a receptive surface for pollen grains. Style The stalk of a carpel, between the stigma and the ovary, through which the pollen tube grows. Ovary Enlarged base of the carpel containing the ovule or ovules. The ovary matures to become a fruit. Ovule Located in the ovaries. Carries female gametes. Ovules become seeds on fertilization.

Pollination is the transfer of pollen (containing the male gametes), from the anther of a flower, to the stigma (receptive surface of the female part of the flower) of the same or a different flower.

Pollination - When pollen is passed from the stamen to the carpels either by. insects -> insects go to feed on nectar of flower. Brush against stamens and collect pollen. Brush against carpel and pass on pollen.

Pollination Wind -> Pollen is blown by the wind. Wind pollinated flowers usually have small or non-existent petals.

The beauty of pollination

Fertilization Once a pollen grain reaches the stigma of another flower of the same species, it will produce a pollen tube. This grows down through the style until it reaches an ovule. Fertilization then takes place, resulting in a seed.

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