1. Cell Structure & Function http://koning.ecsu.ctstateu.edu/cell/cell.html

2. Cell Theory All living things are made up of cells. Cells are the smallest working units of all living things. All cells come from preexisting cells through cell division.

3. Definition of Cell A cell is the smallest unit that is capable of performing life functions.

4. Examples of Cells Amoeba Proteus Plant Stem Red Blood Cell Nerve Cell Bacteria

5. Two Types of Cells Prokaryotic Eukaryotic

6. Prokaryotic Do not have structures surrounded by membranes Few internal structures One-celled organisms, Bacteria http://library.thinkquest.org/C004535/prokaryotic_cells.html

7. Eukaryotic Contain organelles surrounded by membranes PlantAnimal http://library.thinkquest.org/C004535/eukaryotic_cells.html

8. How do plant and animal cells differ? Examine the following slides. Compare and contrast the cells.

9. “Typical” Animal Cell http://web.jjay.cuny.edu /~ acarpi/NSC/images/cell.gif

10. http://waynesword.palomar.edu/images/plant3.gif “Typical” Plant Cell

11. Cell Parts Organelles

12. Surrounding the Cell

13. Cell Membrane Outer membrane of cell that controls movement in and out of the cell Double layer http://library.thinkquest.org/12413/structures.html

14. Cell Wall Most commonly found in plant cells & bacteria Supports & protects cells http://library.thinkquest.org/12413/structures.html

15. Inside the Cell

16. Nucleus Directs cell activities Separated from cytoplasm by nuclear membrane Contains genetic material - DNA

17. Nuclear Membrane Surrounds nucleus Made of two layers Openings allow material to enter and leave nucleus http://library.thinkquest.org/12413/structures.html

18. Chromosomes In nucleus Made of DNA Contain instructions for traits & characteristics http://library.thinkquest.org/12413/structures.html

19. Nucleolus Inside nucleus Contains RNA to build proteins http://library.thinkquest.org/12413/structures.html

20. Cytoplasm Gel-like mixture Surrounded by cell membrane Contains hereditary material

21. Endoplasmic Reticulum Moves materials around in cell Smooth type: lacks ribosomes Rough type (pictured): ribosomes embedded in surface http://library.thinkquest.org/12413/structures.html

22. Ribosomes Each cell contains thousands Make proteins Found on endoplasmic reticulum (ER) & floating throughout the cell http://library.thinkquest.org/12413/structures.html

23. Mitochondria Produces energy through chemical reactions – breaking down fats & carbohydrates Controls level of water and other materials in cell Recycles and decomposes proteins, fats, and carbohydrates http://library.thinkquest.org/12413/structures.html

24. Golgi Bodies Protein 'packaging plant' Move materials within the cell Move materials out of the cell http://library.thinkquest.org/12413/structures.html

25. Lysosome Digestive 'plant' for proteins, fats, and carbohydrates Transports undigested material to cell membrane for removal Cell breaks down if lysosome explodes http://library.thinkquest.org/12413/structures.html

26. Vacuoles Membrane-bound sacs for storage, digestion, and waste removal Contains water solution Help plants maintain shape http://library.thinkquest.org/12413/structures.html

27. Chloroplast Usually found in plant cells Contains green chlorophyll Where photosynthesis takes place http://library.thinkquest.org/12413/structures.html

28. Voyage Inside the Cell http://www.youtube.com/watch?v=Ao9cVh wPg84http://www.youtube.com/watch?v=Ao9cVh wPg84

29. Cells 101: Business Basics Inside the Cell Read and take Cornell notes

30. Using a Light Microscope to Study Cells A light or compound microscope used light and 2 or more lenses to enlarge and focus on an image. The eyepiece contains the ocular lens –Magnifies 10X The rotating lenses are 4X, 10X, 40X & 100X What magnification can be achieved?

31. Parts of the Microscope See your notes: diagram and function