- B cell
Biol.1. Also called B lymphocyte. a type of lymphocyte, developed in bone marrow, that circulates in the blood and lymph and, upon encountering a particular foreign antigen, differentiates into a clone of plasma cells that secrete a specific antibody and a clone of memory cells that make the antibody on subsequent encounters.2. Also called beta cell. a cell in the islet of Langerhans that produces and secretes insulin.
* * *One of the two types of lymphocytes (the others being T cells).All lymphocytes begin their development in the bone marrow. B cells are involved in so-called humoral immunity; on encountering a foreign substance (antigen), the B lymphocyte differentiates into a plasma cell, which secretes immunoglobulin (see antibody).
* * *▪ biologyOne of the two types of lymphocytes (lymphocyte) (the others being T cells). All lymphocytes begin their development in the bone marrow. B cells are involved in so-called humoral immunity; on encountering a foreign substance ( antigen), the B lymphocyte differentiates into a plasma cell, which secretes immunoglobulin (see antibody).
* * *
Look at other dictionaries:
Cell (microprocessor) — Cell is a microprocessor architecture jointly developed by Sony Computer Entertainment, Toshiba, and IBM, an alliance known as STI . The architectural design and first implementation were carried out at the STI Design Center in Austin, Texas over … Wikipedia
Cell culture — in a Petri dish Epithelial cells in culture, stained for keratin (red) an … Wikipedia
Cell — Saltar a navegación, búsqueda Para el personaje de Dragon Ball Z, véase Cell (Dragon Ball). El procesador Cell Cell es una arquitectura de microprocesador desarrollada conjuntamente por Sony Computer Entertainment … Wikipedia Español
Cell signaling — is part of a complex system of communication that governs basic cellular activities and coordinates cell actions. [Witzany, G. (2000). Life: The Communicative Structure. Norderstedt, Libri BoD.] The ability of cells to perceive and correctly… … Wikipedia
Cell (Processeur) — Pour les articles homonymes, voir Cell. Le Cell est un processeur conçu conjointement par IBM, Sony et Toshiba, révélé en février 2005. Il équipe notamment la console de jeu vidéo PlayStation 3 de Sony. Il est envisagé de produire également… … Wikipédia en Français
Cell Jr. — Cell (Dragon Ball) Pour les articles homonymes, voir Cell. Cell Personnage de Dragon Ball … Wikipédia en Français
Cell (Dragon Ball) — Saltar a navegación, búsqueda Cell セル (Seru) Sexo Masculino Fecha de nacimiento Futuro alterno (787), Presente (763 767) Origen en manga … Wikipedia Español
Cell site — Cell phone tower in Palatine, Illinois, USA. A short mast cell site o … Wikipedia
Cell disruption — is a method or process for releasing biological molecules from inside a cell. Choice of disruption method The production of biologically interesting molecules using cloning and culturing methods allows the study and manufacture of relevant… … Wikipedia
Cell migration — is a central process in the development and maintenance of multicellular organisms. Tissue formation during embryonic development, wound healing and immune responses all require the orchestrated movement of cells in a particular direction to a… … Wikipedia
Cell theory — refers to the idea that cells are the basic unit of structure in every living thing. Development of this theory during the Mid 1600s was made possible by advances in microscopy. This theory is one of the foundations of biology. The theory says… … Wikipedia