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  1. Cell: Cell - Cell Press

    Cell publishes peer-reviewed articles reporting findings of unusual significance in any area of experimental biology.

  2. Cell (biology) - Wikipedia

    Most distinct cell types arise from a single totipotent cell, called a zygote, that differentiates into hundreds of different cell types during the course of development.

  3. Cell | Definition, Types, Functions, Diagram, Division, Theory, & Facts ...

    Dec 10, 2025 · A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic in size, cells are the smallest structural units of living matter and compose all living …

  4. What Is a Cell? | Learn Science at Scitable - Nature

    Cells share many common features, yet they can look wildly different. In fact, cells have adapted over billions of years to a wide array of environments and functional roles. Nerve cells, for...

  5. The Cell – Definition, Structure, Types, and Functions

    Jun 14, 2025 · Cells consist of a variety of internal and external structures that perform specialized functions necessary for survival and reproduction. These components vary depending on whether …

  6. What is a cell?: MedlinePlus Genetics

    Feb 22, 2021 · Cells have many parts, each with a different function. Some of these parts, called organelles, are specialized structures that perform certain tasks within the cell. Human cells contain …

  7. Cell - National Human Genome Research Institute

    3 days ago · 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. Plants and animals are …

  8. Intro to cells (article) | Khan Academy

    An introduction to cells, including the history of their discovery and the development of cell theory.

  9. Cell Biology - National Geographic Society

    A cell is the smallest unit that is typically considered alive and is a fundamental unit of life. All living organisms are composed of cells, from just one (unicellular) to many trillions (multicellular).

  10. The cell: Types, functions, and organelles - Medical News Today

    Oct 15, 2025 · Cells are the basic units of life. The body contains trillions of cells, which vary widely in size, number, structure, and function. Cells also communicate with each other. Whether in plants,...