characteristics of flowers
Answers
Answered by
6
A flower, sometimes known as a bloom or blossom, is the reproductive 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 diaspores without fertilization (parthenocarpy). Flowers contain sporangia and 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.
There are four concentric whorls (rings) of organs in a complete flower. From the center to the outside, they are the pistil, stamens, petals, and sepals. Fundamentally, these four parts are modified leaves.
The pistil, a long stalk arising in the center, is the female reproductive organ of a flower. It is composed of the stigma, style, and ovary. The stigma is the sticky knob at the outer end of the stalk. The style is the portion of the stalk connecting the stigma to the ovary. The ovary is the round base that contains one or more undeveloped seeds called ovules. In each ovule is an egg waiting to be fertilized by a sperm.
There are considerable differences among the many species of flowers. Flowers can develop on different places on a plant. Terminal flowers, like a tulip, are single flowers that bloom at the apex or end of an upright stalk. Other flowers arise in an inflorescence, a branched cluster of individual flowers. Begonias are an example of this type. Those flowers that grow at the base of a leaf where it attaches to the stem of the plant are called axillary flowers. Snapdragons are an example of axillary flowers.
There are four concentric whorls (rings) of organs in a complete flower. From the center to the outside, they are the pistil, stamens, petals, and sepals. Fundamentally, these four parts are modified leaves.
The pistil, a long stalk arising in the center, is the female reproductive organ of a flower. It is composed of the stigma, style, and ovary. The stigma is the sticky knob at the outer end of the stalk. The style is the portion of the stalk connecting the stigma to the ovary. The ovary is the round base that contains one or more undeveloped seeds called ovules. In each ovule is an egg waiting to be fertilized by a sperm.
There are considerable differences among the many species of flowers. Flowers can develop on different places on a plant. Terminal flowers, like a tulip, are single flowers that bloom at the apex or end of an upright stalk. Other flowers arise in an inflorescence, a branched cluster of individual flowers. Begonias are an example of this type. Those flowers that grow at the base of a leaf where it attaches to the stem of the plant are called axillary flowers. Snapdragons are an example of axillary flowers.
12Arshdeepsingh11:
I am studying in icse board so plse explain properly
abb samaj lo
okkkk
Answered by
6
Characteristics of flower are :-
Attract insects
Reproduction
Turn into fruits
Attract insects
Reproduction
Turn into fruits
Similar questions