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The cell is the basic structural and functional unit of all forms of life. Every cell consists of cytoplasm enclosed within a membrane; many cells contain organelles, each with a specific function. The term comes from the Latin word cellula meaning 'small room'. Most cells are only visible under a microscope.
Structure of a plant cell. Plant cells are the cells present in green plants, photosynthetic eukaryotes of the kingdom Plantae.Their distinctive features include primary cell walls containing cellulose, hemicelluloses and pectin, the presence of plastids with the capability to perform photosynthesis and store starch, a large vacuole that regulates turgor pressure, the absence of flagella or ...
Cédula de identidad, Buenos Aires (1934) The term cedula ( Latin) means, in general, an order or authorization; in earlier times such a document on the authority of a king, or a royal decree, which for Spain and Spanish America was a decree issued directly by the monarch. [ 1][ 2] A cedula may take the form of a brief authenticating text ...
v. t. e. Cell biology (also cellular biology or cytology) is a branch of biology that studies the structure, function, and behavior of cells. [ 1][ 2] All living organisms are made of cells. A cell is the basic unit of life that is responsible for the living and functioning of organisms. [ 3] Cell biology is the study of the structural and ...
63368. Anatomical terminology. [ edit on Wikidata] In multicellular organisms, stem cells are undifferentiated or partially differentiated cells that can change into various types of cells and proliferate indefinitely to produce more of the same stem cell. They are the earliest type of cell in a cell lineage. [ 1]
Cell culture or tissue culture is the process by which cells are grown under controlled conditions, generally outside of their natural environment. After cells of interest have been isolated from living tissue, they can subsequently be maintained under carefully controlled conditions.
In Brazil, Claro was launched in 2003 with the merger of América Móvil-owned operators ATL (serving the states of Rio de Janeiro and Espírito Santo), BCP (with service in São Paulo metropolitan area, Pernambuco, Alagoas, Ceará, Paraíba, Piauí and Rio Grande do Norte), Americel (operating in Acre, Tocantins, Rondônia, the Distrito Federal, Goiás, Mato Grosso, Mato Grosso do Sul), Tess ...
The eukaryotes ( / juːˈkærioʊts, - əts / yoo-KARR-ee-ohts, -əts) [ 5] constitute the domain of Eukarya or Eukaryota, organisms whose cells have a membrane-bound nucleus. All animals, plants, fungi, and many unicellular organisms are eukaryotes.