Cell Theory Early 1600s - Compound microscope invented

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Students Will: summarize the contributions scientists have made toward the cell theory state the cell theory.
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Presentation transcript:

Cell Theory Early 1600s - Compound microscope invented 1. Made it possible for people to discover and learn about cells

B. Famous Scientists 1. Robert Hooke (1665) a. English physicist b. Observed cork cells c. Cork is made of many small chambers he called “cells” (after monastery rooms) d. Inspired other scientists to search for cells in organisms

First person to see bacteria 2. Anton van Leeuwenhoek (1674) Dutch businessman First person to see tiny organisms in a drop of water (called them “animalcules”) First person to see bacteria

All plants are made of cells 3. Matthias Schleiden (1838) German botanist (plant specialist) Concluded that All plants are made of cells

4. Theodore Schwann (1839) a. German scientist Sideburns a. German scientist b. Concluded that all animals are made of cells Not to be confused with… cells cells

5. Rudolf Virchow (1855) German physician Realized that all cells come from pre-existing cells

C. The discoveries of these scientists lead to the formation of the Cell Theory: All living things are made up of cells. The cell is the basic unit of structure and function in living things. 3. All cells come from pre-existing cells.

***DON’T FORGET: Organism Organ System Organ Tissue Cell Organelle (group of similar cells) Cell Organelle

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