b cell definition biology
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Veterinary Advice Online: Canine Distemper. B cell: A type of white blood cell and, specifically, a type of lymphocyte. Many B cells mature into what are called plasma cells that produce antibodies (proteins) necessary to fight off infections while other B cells mature into memory B cells. All of the plasma cells descended from a single B cell produce the same antibody which is directed against the antigen that stimulated it to mature.
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Plasma cell Plasma cell. Plasma cells, also called plasma B cells, plasmocytes, plasmacytes, or effector B cells, are white blood cells that secrete large volumes of antibodies. They are transported by the blood plasma and the lymphatic system. Plasma cells originate in the bone marrow; B cells differentiate into plasma cells that produce antibody molecules closely modeled after the receptors of the precursor B cell.
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B cell differentiation Interaction of a B-cell with antigen results in clonal expansion, as does activation by T-cells. The majority of B-cell clones mature into plasma cells. Plasma cells are found in the splenic red pulp, lymph node medulla and bone marrow. Plasma cells are the terminal differentiation state of B-cells.
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- Structure of an animal cell. The cell (from Latin cella, meaning small room) is the basic structural, functional, and biological unit of all known living organisms. A cell is the smallest unit of life that can replicate independently, and cells are often called the building blocks of life. The study of cells is called cell biology. Cells consist of cytoplasm enclosed within a membrane, which contains many biomolecules such as proteins and nucleic acids. Organisms can be classified as unicellular (consisting of a single cell; including bacteria) or multicellular (including plants and animals).
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LYMPHOCYTE Noun. 1. B cell-a lymphocyte derived from bone marrow that provides humoral immunity; it recognizes free antigen molecules in solution and matures into plasma cells that secrete immunoglobulin (antibodies) that inactivate the antigens.
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cell theory cell theory. a basic tenet of modern biology, first stated by Matthias Schleiden and Theodor Schwann in 1838–39, that cells are the basic units of structure and function in living organisms.
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- B cell. Any of the lymphocytes that develop into plasma cells in the presence of a specific antigen, such as a bacterium or virus. The plasma cells then produce antibodies that attack or neutralize the antigen. B cells mature in the bone marrow before being released into the blood.
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Memory B cell B cell. B cells are the cells of the immune system that make antibodies to invading pathogens like viruses. They form memory cells that remember the same pathogen for faster antibody production in future infections. Immature B cells are produced in the bone marrow of most mammals.
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- - Function and Types. This lesson will focus in on the generalities of B-cells, such as their place of generation, maturation, and training, as well as some specific types of B-cells, such as plasma cells and memory cells. UExcel Microbiology: Study Guide & Test Prep / Science Courses.
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Lymphocyte Main articles: T cell and B cell. T cells (thymus cells) and B cells (bone marrow-or bursa-derived cells) are the major cellular components of the adaptive immune response. T cells are involved in cell-mediated immunity, whereas B cells are primarily responsible for humoral immunity (relating to antibodies). The function of T cells and B cells is to recognize specific “non-self” antigens, during a process known as antigen presentation.
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- B Cells and Antibodies. B cells are a type of white blood cell. They are similar to swallowing cells like macrophages but they are specific, meaning they can only attack one kind of intruder.
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Structural Biochemistry/Cell Organelles/Animal Cell Structural Biochemistry/Cell Organelles/Animal Cell - Overview. 1  An animal cell is a type of cell that dominates most of the tissue cells in animals. Animal cells are different from plant cells because they don't have cell walls and chloroplasts, which are relevant to plant cells.
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lymphocytes lymphocytes. B lymphocytes; B cell non-thymus-dependent, circulating or lymph gland-located lymphocyte, of short lifespan; produce immunoglobulins in response to presented antigens. T lymphocytes; T cell thymus-derived lymphocyte, of long lifespan (months/years) responsible for cell-mediated sensitivity.
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Leukocytes  (White Blood Cells) B-Lymphocytes (B-Cells). A type of white blood cell that makes antibodies. B lymphocytes are part of the immune system and develop from stem cells in the bone marrow. Also called B cell. lymphocyte is a type of white blood cell that is part of the immune system. There are two main types of lymphocytes: B cells and T cells. The B cells produce antibodies that are used to attack invading bacteria, viruses, and toxins.
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Memory B cell For other uses, see Memory cell (disambiguation). B lymphocytes are the cells of the immune system that make antibodies to invading pathogens like viruses. They form memory cells that remember the same pathogen for faster antibody production in future infections.
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- Cell Biology Cell biology is the science of studying how cells function such as their reproduction metabolism, and their internal and external anatomy. Biology means science … of life. Cells are known as the basic building blocks of all livings things. More Information Cell biology (also called cellular biology or formerly cytology, from the Greek kytos, container) is an academic discipline that studies cells.
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Cell (biology) Structure of an animal cell. The cell (from Latin cella, meaning small room) is the basic structural, functional, and biological unit of all known living organisms. A cell is the smallest unit of life that can replicate independently, and cells are often called the building blocks of life. The study of cells is called cell biology. Cells consist of cytoplasm enclosed within a membrane, which contains many biomolecules such as proteins and nucleic acids.
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An EMT can do more than EMT! EMTs (Emergency Medical Technicians) and/or Paramedics can do a lot more than just the riding in an ambulance into dangerous situations to help people thing.
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- white′ blood′ cell`. any of various nearly colorless cells of the immune system that circulate mainly in the blood and lymph, comprising the B cells, T cells, macrophages, monocytes, and granulocytes.bbr. WBC. Any of various nucleated blood cells that lack hemoglobin and function in the immune system to protect against agents of infection and foreign matter. White blood cells include neutrophils, eosinophils, basophils, lymphocytes, and monocytes.
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- B cells, also known as B lymphocytes, are a type of white blood cell of the lymphocyte subtype.They function in the humoral immunity component of the adaptive immune system by secreting antibodies.n birds, B cells mature in the bursa of Fabricius (the “B” from B cells comes from the name of this organ). B cells, unlike the other 2 classes of lymphocytes, T cells and natural killer cells, express B cell receptors (BCRs) on their cell membrane.
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Chapter 43 Biology Both T and B cells are lymphocytes, white blood cells that spend most of their time in tissues and organs of the lymphatic system. They are responsible for the acquired immunes response. B cells are lymphocytes that develop in the bone marrow. T cells are lymphocytes specialized in the thymus. T and B cells make their way to lymph nodes, spleen, and other lymphatic organs via blood.
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cell cell. 1. a small room, as in a convent or prison. 2. any of various small compartments or bounded areas forming part of a whole. 3. a usu. microscopic structure containing nuclear and cytoplasmic material enclosed by a semipermeable membrane and, in plants, a cell wall; the basic structural unit of all organisms.
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- Located in the heart of Monroe, this hotel is 3.3 mi (5.3 km) from Treehouse Vineyards and 7.4 mi (12 km) from Pebble Creek ….
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cell white cell Leukocyte. white blood cell Abbreviation: WBC Leukocyte.illustration cell The structural unit of the body and of all living things, whether plant or animal. Body cells vary in size from one hundredth of a millimetre to about a tenth of a millimetre, in the case of the OVUM.
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white blood cell White blood cell definition, any of various nearly colorless cells of the immune system that circulate mainly in the blood and lymph and participate in reactions to invading microorganisms or foreign particles, comprising the B cells, T cells, macrophages, monocytes, and granulocytes. See more.
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Chapter 43 Biology Memory B cells are those cells that are not active in producing antibodies during infection, they are used when another attack of the same antigen enter the body. Plasma B cells are those cells that produce antibodies during the infection.