1. The Cell Theory SOL BIO 2a

2. The Cell Theory  The development and refinement of magnifying lenses and light microscopes made the observation and description of microscopic organisms and living cells possible.

3. The Cell Theory  Many scientists contributed to the cell theory

4. Microscope/Leeuwenhoek image: http://www.answers.com/topic/microscope Animation from: http://web.jjay.cuny.edu/~acarpi/NSC/13-cells.htm 1673- ___________________________________ a Dutch microscope maker was the first to see LIVING ORGANISMS in pond water. Anton van Leeuwenhoek

5. Microscope image: http://www.answers.com/topic/microscope Cork image: http://www.cortex.de/img_kork/cork_cells_big.jpg Hooke image: http://www.metaweb.com/wiki/upload/5/5c/Hookeyoungmtwb.jpg 1665- ______________________ used a microscope to examine a thin slice of cork and saw “little boxes” He called them “CELLS” because they looked like the small rooms that monks lived in called Cells Robert Hooke

6. Plant image: http://www.epa.gov/maia/images/classification.gif Schleiden image: http://web.visionlearning.com/events/Schleiden_Apr5_2005.htm 1838- German botanist __________________________ concluded that ALL PLANTS are made of cells Matthias Schleiden

7. Schwann image: http://home.tiscalinet.ch/biografien/biografien/schwann.htm Animals image: http://animaldiversity.ummz.umich.edu/index.htm 1839- German zoologist _________________________ concluded that ALL ANIMALS ARE MADE OF CELLS Theodor Schwann

8. Virchow: http://www.parlament-berlin.de/Galeriecopy.nsf/0/8ABC720262898739C1256A480037F869?OpenDocument Mitosis: http://biology.dbs.umt.edu/biol101/labs/lab_6_images/sect01and06/Rebecca,%20tanner,%20and%20liam%20mitosis%20root%20tip.jpg 1855- German medical doctor _____________________ saw dividing cells in the microscope and reasoned that cells come from other cells Rudolph Virchow

9. CELL THEORY 1. All living things are ________________________. 2. Cells are the basic unit of ____________ & _____________ in an organism. (cell = basic unit of _____________) 3. Cells come from the reproduction of ____________ cells Cell image: http://waynesword.palomar.edu/lmexer1a.htm MADE OF CELLS other life STRUCTURE FUNCTION

10. The Cell Theory  Continued advances in microscopy allowed observation of cell organelles and structure.

11. Pg. 77

12. Left Hand Assignment pg. Draw a picture to represent each part of the cell theory

19. The Discovery of Cells before nucleus true nucleus

21. The Discovery of Cells Two basic types of cells Prokaryotes Prokaryotes - cells with no nucleus or membrane bound organelles Eukaryotes Eukaryotes – cells with a nucleus and membrane bound organelles

22. ProkaryoticEukaryotic

23. ProkaryoticEukaryotic Ribosomes (red)

24. ProkaryoticEukaryotic Ribosomes (red) Nucleus (black)

25. ProkaryoticEukaryotic Ribosomes (red) Nucleus (black) Cytoplasm (yellow)

26. ProkaryoticEukaryotic

27. Pg. 79

28. Prokaryotic / Eukaryotic Venn Diagram Pg. 78

29. PROKARYOTIC BOTH EUKARYOTIC Nucleus DNA Bacteria Cytoplasm Ribosomes Complex Basic Oldest Small Organelles Large Cell Membrane