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  1. Prokaryote structure (article) | Khan Academy

    Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles. All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made of …

  2. Prokaryotic cells (article) | Khan Academy

    The figure below shows the sizes of prokaryotic, bacterial, and eukaryotic, plant and animal, cells as well as other molecules and organisms on a logarithmic scale.

  3. Intro to eukaryotic cells (article) | Khan Academy

    Overview of eukaryotic cells and how they differ from prokaryotic cells (nucleus, organelles, and linear chromosomes).

  4. Prokaryotic and eukaryotic cells (video) | Khan Academy

    Eukaryotic cells contain membrane-bound organelles (such as the nucleus and mitochondria), while prokaryotic cells do not. DNA in eukaryotic cells is found inside the nucleus, while DNA …

  5. Prokaryotic and eukaryotic cells (practice) | Khan Academy

    Test your knowledge on the differences between prokaryotic and eukaryotic cells!

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

    A diagram of a typical prokaryotic cell (upper left), and a micrograph of prokaryotic cells (bottom right). Cell diagram created with Biorender.com. Image credit: "E. coli Bacteria" by NIAID, …

  7. Cellular organelles and structure (article) | Khan Academy

    There are two main types of cells, prokaryotic and eukaryotic. Prokaryotes are cells that do not have membrane bound nuclei, whereas eukaryotes do. The rest of our discussion will strictly …

  8. Prokaryotes and eukaryotes review (article) | Khan Academy

    "In general, prokaryotes are single-celled organisms. However, there's increasing evidence that some groups of prokaryotic cells can organize to form structures that resemble multicellular …

  9. Bacteria (video) | Prokaryote structure | Khan Academy

    For every one cell on the human body, every one human cell-- so these are all cells that all have your DNA in them and they'll have nucleuses, and I'll talk about that in a second-- you have 20 …

  10. Khan Academy | Free Online Courses, Lessons & Practice

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