About 400 results
Open links in new tab
  1. Microscopy: Intro to microscopes & how they work (article

    Let’s not limit it to plants, either: exquisite layers of cells can be found in your skin, in an insect’s wing, and in just about any other living tissue you choose to look at. We, and the world around …

  2. Cell biology and microscopy (article) | Khan Academy

    Learn about cell biology and the different types of microscopes that allow us to observe cell structure and function.

  3. Intro to cells (article) | Khan Academy

    To distinguish individual cells in a piece of tissue or individual bacteria in a sample of liquid required the development of relatively high-powered microscopes, instruments used for …

  4. Cell biology and microscopy (article) | Khan Academy

    Learn about cell biology and the different types of microscopes that allow us to observe cell structure and function.

  5. Introduction to cells review (article) | Khan Academy

    In order to view cells, scientists must use magnifying tools called microscopes. Simple light microscopes, such as magnifying glasses, generally are not powerful enough to view cells. …

  6. Introduction to the cell (video) | Khan Academy

    Cells are the most basic unit of life. All cells have a membrane that separates them from the outside world. Although cells are small, they are not simple. Cells contain different …

  7. Cell parts and functions (article) | Khan Academy

    Cell diagrams represent real cells Cells are too small to be seen with the naked eye. So, we use microscopes to see and study real cells. These powerful tools magnify objects, allowing them …

  8. Cells and organisms (article) | Khan Academy

    All cells come from other cells. New cells are made through a process called cell division. During cell division, one cell grows and splits into two. Single cells are typically too small to be seen …

  9. Prokaryotic and eukaryotic cells (article) | Khan Academy

    A diagram of a typical eukaryotic cell (top), and examples of eukaryotic organisms (bottom). The bottom-left micrograph shows a unicellular amoeba, and the bottom-right photograph shows …

  10. Osmosis and tonicity - Khan Academy

    Osmosis and tonicity. Hypertonic, isotonic, and hypotonic solutions and their effect on cells.