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Killer T Cells
Wiki User
∙ 13y ago
Cells infected with a pathogen can be killed by the immune system through mechanisms such as releasing toxic chemicals, inducing programmed cell death (apoptosis), or activating immune cells like T cells and natural killer cells to target and destroy the infected cells.
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What occurs when pathogens invade the body and what is the response of the body to the invasion?
It depends what sort of pathogen it is and what cells are infected but in general the infected cell is destroyed by lymphocytes and then engulfed by a phagocyte to get rid of what is left.
Why do you get sick the first time when you are infected with a pathogen?
When you are infected with a pathogen for the first time, your immune system has not been previously exposed to it and needs time to recognize and develop a specific response to fight off the invader. This initial lag in immune response allows the pathogen to replicate and cause symptoms of illness before the immune system can mount an effective defense.
What Type of T cell that directly kills virus infected body cells and some tumor cells?
Cytotoxic T cells (CD8+ T cells) are responsible for directly killing virus-infected body cells and some tumor cells by releasing cytotoxic molecules like perforin and granzymes. They recognize infected or abnormal cells by recognizing antigens presented on the cell surface.
What is the nonspecific lymphocyte that kills tumor cells and virus infected cells?
Natural killer (NK) cells are nonspecific lymphocytes that play a crucial role in killing tumor cells and virus-infected cells. They are part of the innate immune system and can quickly identify and destroy abnormal cells without the need for prior exposure.
A marker molecule on a cell that the immune system uses to recognize a pathogen?
The major histocompatibility complex (MHC) molecules are marker molecules on cells that the immune system uses to recognize pathogens. MHC molecules present fragments of pathogens on the cell surface to alert immune cells to the presence of the pathogen. This helps the immune system to target and eliminate infected cells.
Infected cells have some of the pathogen's proteins on their surfaces?
true
What are the immune system cells that can recognize and commence an attack on a pathogen that has previously infected the individual?
Memory cells
How do helper T cells contribute to the body's defense against pathogens?
Helper T cells help to activate T-cytotoxic cells and B-cells. For instance, if you become infected with a pathogen, a macrophage can consume that pathogen and then present parts of it on its own MHC (Major Histocompatability Complex) receptors. T helper cells then detect this and if this is a pathogen previously encountered, it can stimulate T-cytotoxic cells to begin attacking infected cells, and stimulate B-memory cells to begin rapidly dividing into B-plasma cells to produce anitbodies.
How do helper T cell contribute to the body's defense against pathogens?
Helper T cells help to activate T-cytotoxic cells and B-cells. For instance, if you become infected with a pathogen, a macrophage can consume that pathogen and then present parts of it on its own MHC (Major Histocompatability Complex) receptors. T helper cells then detect this and if this is a pathogen previously encountered, it can stimulate T-cytotoxic cells to begin attacking infected cells, and stimulate B-memory cells to begin rapidly dividing into B-plasma cells to produce anitbodies.
What does T cytotoxic cell do?
A cytotoxic T cell kills cells that have been infected by a virus or bacterium. It does this by puncturing the cell's membrane and by emitting a toxin that kills cells.
What happens when you get infected with pathogen?
i dont know
How does your body protect itself from pathogens?
Firstly if your body gets infected with an unknown pathogen then it will build a memory so next the pathogen that infect the body will automatically eliminated and second how the body gets rid of the pathogen is by sending antibodies or whiteblood cells to kill the invaders
Cytotoxic T cells have the ability to?
Cytotoxic T cells have the ability to recognize and target infected or abnormal cells in the body by releasing toxic chemicals that induce cell death. This process helps to eliminate pathogens or cancerous cells, playing a crucial role in the immune response against infections and tumors.
What type of cells kill cancer cells?
I have no idea what kind of cell kills cancer cells. Why do you think i asked the question?
What occurs when pathogens invade the body and what is the response of the body to the invasion?
It depends what sort of pathogen it is and what cells are infected but in general the infected cell is destroyed by lymphocytes and then engulfed by a phagocyte to get rid of what is left.
What can bio weapons do?
leathal pathogen that kills everything is touches
Why do you get sick the first time when you are infected with a pathogen?
When you are infected with a pathogen for the first time, your immune system has not been previously exposed to it and needs time to recognize and develop a specific response to fight off the invader. This initial lag in immune response allows the pathogen to replicate and cause symptoms of illness before the immune system can mount an effective defense.
