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  1. en.wikipedia.org › wiki › EukaryoteEukaryote - Wikipedia

    Há 2 dias · Eukaryote. The eukaryotes ( / juːˈkærioʊts, - əts / yoo-KARR-ee-ohts, -⁠əts) 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.

  2. www.britannica.com › science › eukaryoteEukaryote | Definition, Structure, & Facts | Britannica

    19 de abr. de 2024 · Eukaryote is a term for any cell or organism with a nucleus and other organelles. Learn about the evolution, characteristics, and examples of eukaryotes from Britannica, an authoritative source of science and tech information.

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  4. en.wikipedia.org › wiki › YeastYeast - Wikipedia

    Há 3 dias · For other uses, see Yeast (disambiguation). Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. [1] [2] [3] They are estimated to constitute 1% of all described fungal species. [4]

  5. www.britannica.com › science › endoplasmic-reticulumEndoplasmic reticulum (ER) | Definition, Function, & Location

    25 de abr. de 2024 · endoplasmic reticulum (ER), in biology, a continuous membrane system that forms a series of flattened sacs within the cytoplasm of eukaryotic cells and serves multiple functions, being important particularly in the synthesis, folding, modification, and transport of proteins . All eukaryotic cells contain an endoplasmic reticulum (ER).

  6. www.britannica.com › science › lysosomeLysosome | Description, Formation, & Function | Britannica

    13 de abr. de 2024 · lysosome, subcellular organelle that is found in nearly all types of eukaryotic cells (cells with a clearly defined nucleus) and that is responsible for the digestion of macromolecules, old cell parts, and microorganisms. Each lysosome is surrounded by a membrane that maintains an acidic environment within the interior via a proton pump.

  7. www.genome.gov › genetics-glossary › CellCell - National Human Genome Research Institute

    Há 5 dias · Definition. A cell is the basic building block of living things. All cells can be sorted into one of two groups: eukaryotes and prokaryotes. A eukaryote has a nucleus and membrane-bound organelles, while a prokaryote does not.