Cell Theory History Worksheet: Use with Wacky History of Cells video
1. State the name of the scientist who first observed microbes (bacteria)
2. State the name of the scientists who first observed cells and life processes
3. Explain why cells had not been seen earlier.
4. Summarise the proposals made by Mattias Schleiden.
5. Describe the importance of what Schwann added to Schleiden’s proposals.
6. State the main ideas of the cell theory.
Further Questions. Use your device to answer the following:
7. What year was the cell first observed?
8. What year did Robert Brown observe the nucleus?
9. What year did Hugo von Mohl observe the chloroplast?
10. Smaller organelles were not observed for another 50 years. Propose why smaller organelles took so
long to be observed
11. Name the invention that enabled objects smaller than nuclei and chloroplasts to be seen.
12. State the maximum magnification that is achieved by modern microscopes.