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Is HLA only found on leukocytes?
HLA (human leukocyte antigen) is the name for the MHC (major histocompatibility complex) found in humans. MHC class I molecules (HLA-A, HLA-B, HLA-C) are found on pretty much all cells (some important exceptions are red blood cells). MHC Class II molecules (HLA-DQ, HLA-DP, HLA-DR) are found on special antigen presenting cells, which include B-lymphocytes, dentritic cells, and macrophages.
Which cells are able to protect the body by producing antibodies?
Infections are fought by white blood cells. These cells include: + T-Cells (T lymphocytes) -- Killer T-Cells -> Kill infected cells in your body -- Regulatory T-Cells -> Help to modulate other infection-fighting cells. -- A few other types. + B-Cells (B lymphocytes)-> When activated produce antibodies that will bind to and either inactivate or destroy foreign substances. + Granulocytes: -- Neutrophils -> Kill invading microbes either by ingesting them or releasing specific proteins. -- Eosinophils ->Kill invading parasites (like parasitic worms). Also important in infection related inflammation. -- Basophils -> Preventing blood clotting and increase blood flow to sites of infection. + Monocytes -> Ingest and destroy foreign substances. + Also important in fighting infections are a range of antigen presenting cells. Antigen presenting cells either ingest a foreign substance or become infected. In doing so, they are able to present some of the proteins made by the foreign microbe or virus on their surface for lymphocytes to interact with. Lymphocyte interaction with antigen presenting cells is the first step in lymphocyte activation. These cells typically include dendritic cells, macrophages, B-cells, and some epithelial cells, but a variety of other cell types can play a role.
Do white blood cells act as an antigens?
No, while some whte blod cells will attack and 'eat' invading patjhogens, an 'antigen' is a molicule.
When an antigen triggers the multiplication of B lymphocytes some daughter cells transform into antibody-producing cells and mount an attack while others become?
memory cells
What is the function of B-Cells?
After becoming immunocompetant in the bone marrow, some B-cells become memory cells while other B-cells produce plasma cells which produce antibodies. Antibodies flow throughout the bloodstream and provide humoral immunity.
Type blood has B antibodies?
Has no antigen in many textbooks it will state "no A-antigen and no B-antigen"(which imply the possibility of some other antigen) and some will even say, "no antigen" (which is true; antigens are things that attach to antigen binding sites, thus, if it does not fit any antigen binding sites, it is technically not a antigen but merely a "enzyme/protein") but this is just to reduce unnecessary and irrelevant information; they are only concerned about A-antibody, B-antibody, A-antigen, and B-antigen. Nonetheless, know that there are in fact antigens on o blood cells, they are just inactive. My guess is, N acetyl glactosamine on A antigen and Galactose on B antigens are Epitopes (: a small specific regions on antigens that are bound by the antigen receptors on lymphocytes and by secreted antibodies.) Antigens without epitopes will not be detected by antigen binding sites.
What plant and animals cells are examples of cells?
Some examples of plant cells are : Parenchyma Cells, Collenchyma Cells, Sclerenchyma Cells, and water conducting cells. Animal cells are nerve cells, muscle cells, and skin cells.
Does o blood type have a antigens?
Has no antigen in many textbooks it will state "no A-antigen and no B-antigen"(which imply the possibility of some other antigen) and some will even say, "no antigen" (which is true; antigens are things that attach to antigen binding sites, thus, if it does not fit any antigen binding sites, it is technically not a antigen but merely a "enzyme/protein") but this is just to reduce unnecessary and irrelevant information; they are only concerned about A-antibody, B-antibody, A-antigen, and B-antigen. Nonetheless, know that there are in fact antigens on o blood cells, they are just inactive. My guess is, N acetyl glactosamine on A antigen and Galactose on B antigens are Epitopes (: a small specific regions on antigens that are bound by the antigen receptors on lymphocytes and by secreted antibodies.) Antigens without epitopes will not be detected by antigen binding sites.
What are antigen types?
Some antigen types include bacterium and immunogen.
WHAT ARE SOME EXAMPLES OF DILPOID CELLS?
Every somatic cells are diploid. Only sex cells are haploid
What is an artificial organ and some examples?
They are made of cells
What are some examples cells divide rapidly some not at all after maturity?
because
