What Is The Main Function Of Filament?

What is the function of filament in plant?

They consist of an anther, the site of pollen development, and in most species a stalk-like filament, which transmits water and nutrients to the anther and positions it to aid pollen dispersal..

What is the function of anther and filament?

The anther is a yellowish, sac-like structure, involved in producing and storing the pollens. The filament is a slender, threadlike object, which functions by supporting the anther.

Which material is used in the filament of bulb?

TungstenTungsten is used for making filament of an electric bulb due to the following reasons: Being an alloy it has a very high melting point. It has very high resistivity so it does not burn easily at room temperature. The lamp glows at high temperatures.

What is the main function of the anther?

The main function of the anther of a flower is to produce the pollen of flowering plants. The pollen contained within the anther provides the sperm necessary for reproduction.

Which gas is used in filament lamp?

argonTungsten filament lamps were first marketed by the Hungarian company Tungsram in 1904. This type is often called Tungsram-bulbs in many European countries. Filling a bulb with an inert gas such as argon or nitrogen slows down the evaporation of the tungsten filament compared to operating it in a vacuum.

What is carpel flower?

The carpel is the female reproductive organ that encloses the ovules in the flowering plants or angiosperms.

What is the function of pistil?

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.

What does anther mean?

: the part of a stamen that produces and contains pollen and is usually borne on a stalk — see flower illustration.

Where is anther located and what is its function?

c) anther is the lobed part on the top of the stamen which is the male reproductive part of the flower. it produces pollen grains which are the male gametes and fertilize the ovules to form zygote.

What is the other name of carpel?

The term pistil is sometimes used to refer to a single carpel or to several carpels fused together.

What is the function of filament in a bulb?

An incandescent light bulb has a small thin wire with two bigger wires holding it up. This wire is called a filament. The filament is the part of the light bulb that produces light.

What is the main drawback of filament lamp?

– The most common disadvantage associated with the use of filament lamp is that is can be costly to run for long periods. As mentioned before, its initial cost is low compared to other types of lighting, however, the running costs can be significantly higher than other forms of lighting.

Is pistil and carpel same?

Carpels are the basic units of the gynoecium and may be free (distinct) or fused (connate). The term pistil is used in a similar manner to carpel – in some situations the terms are equivalent in meaning but not in others. For example, a flower represented by G 1 has a single carpel or a single pistil.

What is the function of carpel?

First, because carpels are the receivers of pollen, they may function to selectively control fertilization. The transfer of pollen to the carpels is followed by germination of the pollen grain to form a pollen tube, which grows through the tissue of the stigma and style to the micropyle of the ovule.

What is the filament?

noun. a very fine thread or threadlike structure; a fiber or fibril: filaments of gold. a single fibril of natural or synthetic textile fiber, of indefinite length, sometimes several miles long. a long slender cell or series of attached cells, as in some algae and fungi.

What is the function of sepal?

The sepal is a defensive organ that encloses and protects the developing reproductive structures. At maturity, the sepal opens when the flower blooms. The outer sepal epidermis (see Fig.

What are the main parts of flower?

The main flower parts are the male part called the stamen and the female part called the pistil. The stamen has two parts: anthers and filaments. The anthers carry the pollen.