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All cells have specialized proteins on their surface that show a sampling of the contents of the cell to certain immune cells, which recognize these samples as self or foreign (i.e. intracellular pathogens) and kill infected cells.

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What provides a defense against abnormal cells and pathogens inside living cells?

The immune system of the body provide a defense against abnormal cells and pathogens inside living cells. Generally this results into rise in temperature of the body. Therefore, fever is the indication of having war against abnormal cells and pathogens.


Viral or bacterial germs that invade body cells are called?

Intracellular pathogens.


Do antibodies attack extracellular or intracellular antigens?

Antibodies primarily target extracellular antigens, which are found outside of cells. These antigens can be on the surface of pathogens or released into the extracellular environment. Intracellular antigens, located inside cells, are primarily targeted by T cells of the immune system.


What happens when the body cannot differentiate between pathogens and body cells?

The immune system will target the body's own cells


What are the key differences between th1 and th2 T cells and how do they impact the immune response?

Th1 T cells are involved in cell-mediated immunity and help fight intracellular pathogens, while Th2 T cells are involved in humoral immunity and help fight extracellular pathogens. The key difference lies in the type of immune response they trigger. Th1 cells promote inflammation and activate macrophages, while Th2 cells stimulate B cells to produce antibodies. This balance between Th1 and Th2 responses is crucial for an effective immune response against different types of pathogens.


Cells that identify pathogens and distinguish one from another?

Cells of the immune system, such as T cells and B cells, play a crucial role in identifying and distinguishing pathogens. T cells recognize specific antigens presented by infected cells and trigger an immune response, while B cells produce antibodies that bind to antigens on pathogens, marking them for destruction by other immune cells. This process allows the immune system to target and eliminate a wide variety of pathogens efficiently.


What is the Differentiate between Humoral mediated immune response and cellular mediated immune response?

The difference between humoral immunity and cell-mediated immunity is that humoral immunity uses B cells and T cells whereas mediated immunity only uses the T cells. Also humoral immunity provides a defense against antigens and pathogens in body fluids whereas cell-mediated immunity protects from abnormal cells and pathogens inside living cells.


What are Th1 and Th2?

Th1 and Th2 are part of your adaptive immunity. They are the effector T cells with specific function. Th1 acts directly on macrophages to make it able to defeat pathogens and Th1 activates B cells.


What body's ability can destroy pathogens before they can cause disease?

The immune system can destroy pathogens before they can cause disease. It does this through mechanisms such as the production of antibodies, activation of immune cells like T cells and macrophages, and the release of cytokines to trigger an immune response against the pathogens.


Is intracellular space same as intercellular space?

intracellular pathogens can only replicate inside a host cell, whereas extracellular pathogens can replicate independent of the host


What is a network of cells tissues organs and chemicals that fight pathogens?

The immune system is a network of cells tissues organs and chemicals that fight pathogens. This is how the body keeps healthy and defends against invading illnesses.


How does your body kill pathogens that get inside us?

The body's immune system fights pathogens through multiple mechanisms. These can include engulfing and digesting pathogens (phagocytosis), producing antibodies to neutralize pathogens, releasing signaling molecules to recruit other immune cells, and triggering a process called apoptosis in infected cells to prevent the spread of the infection.