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What are the cells that combine with foreign antigens and present them to t cells called?
Those cells are called antigen-presenting cells (APCs). They include dendritic cells, macrophages, and B cells. Their role is to ingest foreign antigens, process them, and present them to T cells to initiate an immune response.
How does a B cell tell the difference between an invader cell and a body cell?
Antigens work as bar-codes to help the immune system differentiate between body cells and pathogens. Normally the body will not attack its own cells, but is programmed to attack those with foreign antigens.
The cell types that are most responsible for presenting foreign antigens together with surface antigens to specific receptors on the membrane of T lymphocytes are the macrophages and?
dendritic cells. These cells play a crucial role in activating T lymphocytes and initiating an immune response against foreign antigens by presenting antigens to the T cell receptors (TCR) on the surface of T lymphocytes. This interaction leads to the activation and proliferation of specific T cell populations to combat the invading pathogen.
How do histocompatibility antigens help the immune system in recognizing and distinguishing between self and non-self cells?
Histocompatibility antigens, also known as human leukocyte antigens (HLAs), help the immune system recognize and distinguish between self and non-self cells by serving as markers on the surface of cells. These antigens play a crucial role in immune responses by allowing the immune system to identify and target foreign invaders while avoiding attacking the body's own cells.
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 types of antigens are recognized by B cells?
Processed fragments of protein antigens displayed on surfaces of body cells.
What white blood cells are responsible for recognizing and destroying foreign antigens?
The white blood cells responsible for recognizing and destroying foreign antigens are called lymphocytes. There are two main types of lymphocytes: B cells, which produce antibodies to tag antigens for destruction, and T cells, which directly attack and destroy cells that are infected or presenting foreign antigens.
What are the cells that combine with foreign antigens and present them to t cells called?
Those cells are called antigen-presenting cells (APCs). They include dendritic cells, macrophages, and B cells. Their role is to ingest foreign antigens, process them, and present them to T cells to initiate an immune response.
What typoes of cells produce antigens?
All cells produce antigens, or cell surface markers. The only question is whether the antigens are self antigens which means they belong in the body or they're foreign antigens which means they are an invading bacteria or virus (or a cancerous cell).
Specialized cells that attack foreign substances upon recognizing the foreign surface antigens are called?
These specialized cells are called immune cells, particularly T cells and B cells. They play a crucial role in the body's immune response by identifying and responding to foreign antigens to eliminate them and protect the body from infections.
How can white cells tell your cells from foreign?
White blood cells can recognize foreign cells or pathogens through proteins on their surface called antigens. These antigens are like identification tags that the immune system uses to distinguish between "self" and "non-self" cells. When white blood cells encounter cells with foreign antigens, they trigger an immune response to attack and eliminate the intruders.
How does a B cell tell the difference between an invader cell and a body cell?
Antigens work as bar-codes to help the immune system differentiate between body cells and pathogens. Normally the body will not attack its own cells, but is programmed to attack those with foreign antigens.
What are molecules on the outer surface of a cell that identify it as long friend or for?
Molecules on the outer surface of a cell that identify it as "self" or "foreign" are called antigens. These antigens play a crucial role in the cell's ability to distinguish between its own cells and potentially harmful foreign cells. The recognition of self-antigens helps the immune system to tolerate the body's own cells while identifying and attacking foreign invaders.
Foreign antigens pressed into the plasma membrane are recognized by what?
helper T cells B cells so the answer is B for Plato users
What forms in the blood to help fight invading antigens?
White blood cells, specifically lymphocytes, are responsible for helping to fight invading antigens in the blood. These cells produce antibodies that target and neutralize foreign substances, such as bacteria or viruses. Additionally, white blood cells can mount an immune response to destroy these antigens and prevent infection.
The cell types that are most responsible for presenting foreign antigens together with surface antigens to specific receptors on the membrane of T lymphocytes are the macrophages and?
dendritic cells. These cells play a crucial role in activating T lymphocytes and initiating an immune response against foreign antigens by presenting antigens to the T cell receptors (TCR) on the surface of T lymphocytes. This interaction leads to the activation and proliferation of specific T cell populations to combat the invading pathogen.
Are foreign cells bad?
Foreign cells are not inherently bad; their effects depend on the context. In the immune system, foreign cells, such as pathogens, can trigger an immune response, which is necessary for protecting the body. However, foreign cells can also be beneficial, such as those from donor organs in transplants or certain therapies. The key lies in how the body recognizes and responds to these foreign cells.
