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  1. Cell: Cell - Cell Press

    Cell publishes findings of unusual significance in any area of experimental biology, including but not limited to cell biology, molecular biology, neuroscience, immunology, virology and microbiology, …

  2. Cell (biology) - Wikipedia

    Cells emerged on Earth about four billion years ago. All organisms are grouped into prokaryotes, and eukaryotes. Prokaryotes are single-celled and include archaea and bacteria. Eukaryotes can be …

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

    Jan 16, 2026 · 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. Cell - National Human Genome Research Institute

    2 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 …

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

    All cells evolved from a common ancestor and use the same kinds of carbon-based molecules. Learn how cell function depends on a diverse group of nucleic acids, proteins, lipids, and sugars.

  6. What is a cell?: MedlinePlus Genetics

    Feb 22, 2021 · Human cells contain the following major parts, listed in alphabetical order: Within cells, the cytoplasm is made up of a jelly-like fluid (called the cytosol) and other structures that surround …

  7. 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). Cell …

  8. 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,...

  9. Cell Anatomy Viewer Game - Play | Ask A Biologist

    Explore inside animal, plant, bacterial, or fungal cells! Learn cell parts and quiz yourself in this cell anatomy game. Can you learn all the organelles?

  10. What is a cell? - YourGenome

    All living things are made of cells. They are the basic building blocks of life. The human body is composed of trillions of cells, all with their own specialised function. Cells are the basic structures of …