About 4,020,000 results
Open links in new tab
  1. Cell | Definition, Types, Functions, Diagram, Division, Theory, & Facts ...

    Dec 1, 2025 · Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things. Most cells have one or more nuclei and other organelles that carry out a …

  2. Cell (biology) - Wikipedia

    Cell theory, developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells, that cells are the fundamental unit of structure and …

  3. Intro to cells (article) - Khan Academy

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

  4. Cell - National Human Genome Research Institute

    1 day 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?: MedlinePlus Genetics

    Feb 22, 2021 · Cells are the basic building blocks of all living things. The human body is made of trillions of cells that carry out specialized functions.

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

    Some cells are organisms unto themselves; others are part of multicellular organisms. All cells are made from the same major classes of organic molecules: nucleic acids, proteins, carbohydrates...

  7. Overview of Cells - Visible Body

    Cells are the microscopic units that make up living organisms. Learn about the characteristics and structures that all cells have in common.

  8. Cells and the Versatile Functions of Their Parts - Education

    Nov 18, 2024 · As is often repeated, cells are the basic building blocks of all life. They are responsible for generating the energy that sustains life, eliminating waste, and replicating to replace damaged …

  9. Cells | Open Access Journal | MDPI

    Cells were treated with the Gli1 inhibitor Gant-61, the Smoothened inhibitors GDC-0449 and Glasdegib, the Akt inhibitor MK-2206, and the mTOR inhibitor RAD001, both alone and in combination.

  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,...