Explain the male reproductive part of a flower with a neat diagram.
Answers
Answer:
Explanation:
External plant structures such as leaves, stems, roots, flowers, fruits and seeds are known as plant organs. Each organ is an organized group of tissues that works together to perform a specific function. These structures can be divided into two groups: sexual reproductive and vegetative. Sexual reproductive parts produce seed; they include flower buds, flowers, fruit and seeds.
Flowers
Sexual reproduction is the sole function of flowers, often the showiest part of a plant. Flowers' beauty and fragrance evolved not to please humans but to attract pollinators (insects or birds), which are central to the reproductive process.
Flowers also help classify plants.
The system of plant nomenclature we use today was developed by Carl von Linné (Linnaeus) and is based on flowers, reproductive parts of plants or both. One reason his system is successful is that flowers are the plant part least influenced by environmental changes. Thus, a knowledge of flowers and their parts is essential for anyone interested in plant identification.
Structure
As a plant's reproductive part, a flower contains a stamen (male flower part) or pistil (female flower part), or both, plus accessory parts such as sepals, petals, and nectar glands (Figure 19).
The stamen is the male reproductive organ. It consists of a pollen sac (anther) and a long supporting filament. This filament holds the anther in position, making the pollen available for dispersal by wind, insects, or birds.
Petals generally are the highly colored portions of a flower.
The pistil is a plant's female part. It generally is shaped like a bowling pin and is located in the flower's center. It consists of a stigma, style and ovary. The stigma is located at the top and is connected by the style to the ovary. The ovary contains eggs, which reside in ovules. If an egg is fertilized, the ovule develops into a seed.
Sepals are small, green, leaflike structures located at the base of a flower. They protect the flower bud. Collectively, the sepals are called a calyx.
Petals generally are the highly colored portions of a flower. Like nectar glands, petals may contain perfume. Collectively, the petals are called a corolla. The number of petals on a flower often is used to help identify plant families and genera. Flowers of dicots typically have four or five sepals, petals or multiples thereof. In monocots, these floral parts typically come in threes or multiples of three.
Answer:
Male reproductive parts of a flower
The male or pollen-bearing part is called the stamen.
Stamen is the male reproductive organ and is also known as Androecium. It consists of two parts:
Anther
The pollen-bearing body of the stamen exhibits a wide variety of forms and means of attachment.
Filaments
A narrow and threadlike section of the stamen functions by supporting the pollen-bearing anther.