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  1. 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.

  2. 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 …

  3. 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 …

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

    Jun 14, 2025 · A cell is the smallest structural and functional unit of an organism, typically microscopic, consisting of cytoplasm and a membrane, and in most cases containing a nucleus and organelles.

  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. Intro to cells (article) | Khan Academy

    A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm. The cell membrane surrounds the cell and controls the substances that go into and out of the cell.

  8. Cell - Structure and Function - GeeksforGeeks

    Dec 30, 2025 · A cell is the smallest, fundamental unit of life and is responsible for all life's functions. It is the basic biological, structural, and functional components of all living things.

  9. 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, …

  10. Cell - Structure, Organelles, Metabolism | Britannica

    Dec 10, 2025 · Cell - Structure, Organelles, Metabolism: Like the cell membrane, membranes of some organelles contain transport proteins, or permeases, that allow chemical communication between …