Table of Contents
What is a filament short answer?
filament is a conducting wire with a high melting point, forming part of an electric bulb or thermionic valve and heated by an electric current. the part that produces pollen — consists of a slender stalk, called a filament and an anther. The filament supports the anther.
What is filament in human body?
Filaments are the structural proteins of the cell. There are three types of filaments: microtubules, microfilaments (known as actin filaments), and intermediate filaments. Other functions include helping with cell division, adhesion between cells, and movement of things within the cell.
What are filaments in science?
Scientific definitions for filament A fine or slender thread, wire, or fiber. The part of a stamen that supports the anther of a flower; the stalk of a stamen.
What is filament and what is its use?
The filament is the part of the light bulb that produces light. Filaments in incandescent light bulbs are made of tungsten. Whenever an electric current goes through the filament, the filament glows. It may also be known as the electron emitting element in a vacuum tube.
What is filament Class 6 short answer?
Filament is usually made of very thin tungsten wire. It is the filament of the bulb which glows when electricity from cell is passed through it. (3) The two thick wires inside the glass bulb provides support to the filament and also make the connection of the filament to the outer circuit.
What is filament in geography?
filament Add to list Share. The filament supports the anther, which is where pollen develops. The word filament is from the Latin word filum, which means “thread.” Filament, in fact, can be a synonym for thread.
What happens when the cytoskeleton malfunctions?
Consequently, defects in cytoskeletal structures lead to various diseases, including cancer and neurological disorders. Different cytoskeletal systems do not function in isolation, but collaborate with each other in cells.
What are filaments in muscles?
Myofilaments are the two protein filaments of myofibrils in muscle cells. The two proteins are myosin and actin and are the contractile proteins involved in muscle contraction. The two filaments are a thick one composed mostly of myosin, and a thin one composed mostly of actin.
What do protein filaments do?
Arrays of protein filaments form a network within the cytoplasm. These filaments determine the shape of the cell and provide for the movement of the cell as a whole or for the movement of organelles from one part of the cell to another.
What is a filament in astronomy?
Cosmic filaments are strands of dark matter and galaxies that rotate (illustrated). As the filaments spin, they pull matter into their orbit and toward galaxy clusters at each end.
What is a filament in a light bulb?
The word Filament itself refers to the wire or thread inside the bulb which lights up when you turn it on.
What is a filament Fibre?
Filaments are a type of fiber having indefinite or extreme length, such as synthetic fibers which can be made to any length; From: Identification of Textile Fibers, 2009.
How many filaments are there in a bulb?
A three-way bulb has two filaments of different wattage — typically a 50-watt filament and a 100-watt filament. The filaments are wired to separate circuits, which can be closed initially using a special three-way socket. The switch in the three-way socket lets you choose from three different light levels.
What is filament and anther?
The stamen is made up of two parts: the anther and filament. The anther produces pollen (male reproductive cells). The filament holds the anther up. During the process of fertilization, pollen lands on the stigma, a tube grows down the style and enters the ovary.
What is filament in one sentence?
a thin wire (usually tungsten) that is heated white hot by the passage of an electric current. (1) The working part of a filament lamp is a metal coil which glows white hot. (2) Yank on one filament in the web, and the other filaments had to move, too. (5) Tungsten filament are used to radiate light.
What is filament of bulb Class 6?
An electric bulb has a thin wire called filament. This filament is connected to two thick wires that provide support to it. One of these thick wires is connected to the metal cap at the base of the bulb while the other wire is connected to the metal tip at the centre of the base.
What do you mean by the filament of a bulb Class 6?
The bulb has two thick contact wires in the center with a thin wire attached between them. This thin wire is called filament. When electricity is passed through the terminals of the bulb, the filament gets heated up and produces light. A bulb is said to be fused if the filament gets broken.
What happens if the cytoplasm stops working?
If a cell would be without cytoplasm it could not retain its shape and would be deflated and flat. The organelles would not stay suspended in the solution of a cell without the support of cytoplasm.
Can a cell survive without cytoskeleton?
Cytoskeletan is the supportive framework of the cell , it provides mechanical strength to the cell same as Cell wall present in bacteria or plants. Due to cytoskeleton , cell is able to retain it;s shape. Without cytoskeletan cell will no longer be able to retain its shape and will ultimately burst.
What would happen if the Golgi apparatus stopped working?
In the absence of the Golgi apparatus, lysosomes would not be produced, and the accumulation of dead and damaged organelles and molecules in the cell would ultimately result in cell death. If the Golgi apparatus is not present the packaging and transport of materials would cease.
What is the function of thick filaments?
The Role of the Thick Filaments in the Regulation of Muscle Contraction. Contraction of skeletal and heart muscle is triggered by a calcium-dependent structural change in the actin-containing thin filaments that permits binding of myosin motors from the neighbouring thick filaments.
Does the length of myofilaments change?
The change in myofilament force upon variation of sarcomere length is due to a change in the number of active cycling, force producing cross-bridges in the cardiac sarcomere[12, 20, 21].
What is the function of thin filaments?
The functions of the actin based thin filaments are (1) interaction with myosin to produce force; (2) regulation of force generation in response to Ca2+ concentration; and (3) transmission of the force to the ends of the cell.
