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

2. Definition of Cell A cell is the smallest unit of structure in all living things.

3. Cell Theory All living things are made of cells. All cells come from preexisting cells through cell division.

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

5. Cell Organization Cell  Tissue  Organ (heart) 

6. Cell Organization (continued)  Organ system  Organism (circulatory system) (Human)

7. Two Types of Cells Prokaryotic Eukaryotic

8. Prokaryotic Cells No membrane- bound organelles/structur es Do not have a true nucleus One-celled organisms, Bacteria http://library.thinkquest.org/C004535/prokaryotic_cells.html

9. Eukaryotic Cells Contain organelles surrounded by membranes Has a nucleus Most living organisms PlantAnimal http://library.thinkquest.org/C004535/eukaryotic_cells.html

10. Cell Parts AKA Organelles

11. Inside the Cell

12. Nucleus Directs cell activities Contains genetic material – Chromosomes/DNA

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

14. Cytoplasm Gel-like mixture in the cell

15. Mitochondria Produces energy through chemical reactions – breaking down fats & carbs “Powerhouse” of the cell http://library.thinkquest.org/12413/structures.html

16. Surrounding the Cell: Cell Membrane Allows movement in and out of the cell http://library.thinkquest.org/12413/structures.html

17. Cell Membrane Cont. Passive Transport: –Requires NO energy –Diffusion: substance move through the membrane –Osmosis: movement of water from HIGH  LOW concentration Active Transport: –Requires energy –Moves from LOW  HIGH concentration (that’s why it takes energy!)

18. Endoplasmic Reticulum Moves materials around in cell http://library.thinkquest.org/12413/structures.html

19. Ribosomes Make proteins http://library.thinkquest.org/12413/structures.html

20. Vacuoles Membrane-bound sacs for storage, digestion, and waste removal http://library.thinkquest.org/12413/structures.html

21. Surrounding the Cell: Cell Wall Found in plant cells/bacteria Shapes, supports & protects cells http://library.thinkquest.org/12413/structures.html

22. Chloroplast Found only in plant cells *Green Chlorophyll= Makes plant food/ photosynthesis http://library.thinkquest.org/12413/structures.html

23. Golgi Bodies Moves Protein within/out of the cell http://library.thinkquest.org/12413/structures.html

24. Lysosome Found mainly in animal cells Digestive functions for proteins, fats, and carbohydrates http://library.thinkquest.org/12413/structures.html

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

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

27. Cellular Rap http://www.youtube.com/watch?v=- zafJKbMPA8http://www.youtube.com/watch?v=- zafJKbMPA8