The Discovery of Cells: Key Contributors and the Development of the Cell Theory, Study notes of English

Download The Discovery of Cells: Key Contributors and the Development of the Cell Theory and more Study notes English in PDF only on Docsity! Name __________________________ Date ___________ Period_________ The Cell Theory Key Concept: The cell theory states that  All living things are made of cells.  Cells are the basic units of structure and function in living things.  Living cells come only from other living cells. Directions: Complete the following passage by filling in the correct missing words or phrases. A cell is defined as ___the basic units of structure and function in living things___. Cells were first described by the English scientist ___Robert Hooke___, who thought that they resembled the tiny rooms, or cells, where monks live. Actually, ___Hooke___ did not see living cells, just the ___cell walls___ of dead cork cells. Cells contain structures called ____organelles___. This term means tiny ___organs___. The discovery of cells and their internal parts was made possible by the invention of the ___microscope___ in the ___late 16th___ century. This was around the same time as the English Bill ___of Rights___. During the next two hundred years, the work of many scientists led to the development of the ___cell___theory. This theory can be summarized by three statements: 1. ___All living things are made of cells___ 2. ___Cells are the basic units of structure and function in living things____ 3. ___Living cells come only from other living cells____ Describe how each of the following scientists contributed to our knowledge of cells, including the year of their contribution. On the back of this sheet, construct a timeline including the scientists and their contributions, Columbus sailing for the New World, the English Bill of Rights, the signing of the Declaration of Independence, the French & Indian War, our War for Independence, and Lewis and Clark exploring the American West. 1. Zacharias & Hans Janssen ___Developed first microscope 1590___ 2. Robert Hooke ___coined term “cells” Published Micrographia 1665____ 3. Anton van Leeuwenhoek ___Improved microscope. Looked at blood, rainwater, and scrapings from his teeth 1674____ 4. Mathias Schleiden ___co-founder of cell theory – 1st and 2nd statements 1838___ 5. Theodor Schwann ___co-founder of cell theory – 1st and 2nd statements 1838___ 6. Rudolph Virchow ___Added third statement of cell theory 1855___