1. All living things are composed of cells……
CHAPTER 4
THE STRUCTURE AND
FUNCTION
OF THE CELL

2. LEEUWENHOEK
1600s
simple microscope
animalcules in pond water

3. HOOKE
1665
Plant stem
Cork
“Cell”

4. BROWN
1828
Nucleus

5. SCHWANN
1839 Animals are made of cells

6. SCHLEIDEN
1839 Nucleus is involved in cell reproduction

7. VIRCHOW
1855 Cells divide

8. OTHER MICROSCOPES
TEM – TRANSMISSION ELECTRON - thin - 200,000 times SEM – SCANNING - surface - 3-D - 100,000 times

10. Cell Theory Basic unit of life = cells
All living things are made of cells
Cells come from pre-existing cells

11. CELL SHAPES

12. CELL SIZE Cells are normally measured in micrometers.
Cells are normally measured in micrometers.
Millimeters are often used for teaching purposes

13. PROKARYOTIC CELL VS. EUKARYOTIC CELL

14. Plant Cell Animal Cell

15. CELL MEMBRANE

16. FLUID MOSAIC MODEL OF THE CELL MEMBRANE

17. PROTEINS Peripheral Integral Transport proteins Receptor proteins
Recognition proteins

24. CENTRIOLES

26. RESPIRATION

28. Contain a double membrane and their own DNA
PLASTIDS
Contain a double membrane and their own DNA
Examples: amyloplast, chloroplast,chromoplast

29. PHOTOSYNTHESIS

31. Why leaves turn colors in the fall
CHLOROPLAST
Why leaves turn colors in the fall

32. STOMATA

34. What is cilia?
What is flagella?