Parts of the Flower

Introduction

Parts of the Flower

A flower, sometimes known as a bloom or blossom, is thereproductive structure found in flowering plants (plants of the division Magnoliophyta, also called angiosperms). The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a population) or allow selfing (fusion of sperm and egg from the same flower). Some flowers produce diasporeswithout fertilization (parthenocarpy). Flowers contain sporangiaand are the site where gametophytes develop. Flowers give rise to fruit and seeds. Many flowers have evolved to be attractive to animals, so as to cause them to be vectors for the transfer of pollen.

Task

Give the functions of the following parts of the flower.

1. Stigma

2. Stamen

3. Petal

4. Stem

5. Petal

Process

Peduncle: The stalk of a flower.
Receptacle: The part of a flower stalk where the parts of the flower are attached.
Sepal: The outer parts of the flower (often green and leaf-like) that enclose a developing bud.
Petal: The parts of a flower that are often conspicuously colored.
Stamen: The pollen producing part of a flower, usually with a slender filament supporting the anther.
Anther: The part of the stamen where pollen is produced.
Pistil: The ovule producing part of a flower. The ovary often supports a long style, topped by a stigma. The mature ovary is a fruit, and the mature ovule is a seed.
Stigma: The part of the pistil where pollen germinates.
Ovary: The enlarged basal portion of the pistil where ovules are produced.

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Evaluation

Draw a flower and label its parts.

Your score will be based on the following criteria:

Criteria	PS	TS
Content	40%
Organization	30&
Creativity	30%

Conclusion

Flowers offer more to the planet than merely natural artwork and beauty. They are essential to removing carbon dioxide and toxins in the air. They feed the honeybee population that’s responsible for promulgating food crops. To most people however, flowers carry enormous symbolism, provide soothing sympathy and are an integral part of many of life’s ceremonies.

For many centuries flowers occupied an important place in our lives. Flowers are regarded as a symbol of love, beauty and a gift of nature. Flowers are used by us to provoke the feelings of love and happiness because they have the power to make people happy and cheerful.