Prokaryotes

THE DISCOVERY OF CELLS Summary- Cells were named and discovered by a British scientist, Robert Hooke. He named them cells because the cork cell he saw looked like little rooms under the microscope. Cell means "little rooms" in Latin. He saw mostly plants and fungi. Anton van Leeuwenhoek found tiny creatures swimming around in pond scum and called them animalcules which means "little animals".

Eventually the cell theory was made by Hooke, Leeuwenhoek, Matthias Schleiden, and Theodor Schwann: -All organisms are composed of one or more cells -The cell is the basic unit of life in all living things -All cells come from existing cells

There are structures that all cells have:
 * Cell Membrane
 * DNA
 * Organelles
 * Cytoplasm

But there are different types of cells with different structures. Prokaryotic cells (aka bacteria) have the least amount of organelles and are the smallest cells. The Eukaryotic cells (ex: animal and plant cells) are much more complex and they have a nucleus.

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