1. Introduction to Cells

2. The Animal Cell 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

3. The Animal Cell 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

4. The Animal Cell 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

5. The Animal Cell 4. 5. 6. 7. 8. 9. 10. 11. 12.

6. The Animal Cell 5. 6. 7. 8. 9. 10. 11. 12.

7. The Animal Cell 6. 7. 8. 9. 10. 11. 12.

8. The Animal Cell 7. 8. 9. 10. 11. 12.

9. The Animal Cell 8. 9. 10. 11. 12.

10. The Animal Cell 9. 10. 11. 12.

11. The Animal Cell 10. 11. 12.

12. The Animal Cell 11. 12.

13. The Animal Cell 12.

14. The Animal Cell

15. The Plant Cell 1. 2. 3. 4 5. 6 7. 8. 9. 10. 11. 12. 13.

16. The Plant Cell 2. 3. 4 5. 6 7. 8. 9. 10. 11. 12. 13.

17. The Plant Cell 3. 4 5. 6 7. 8. 9. 10. 11. 12. 13.

18. The Plant Cell 4 5. 6 7. 8. 9. 10. 11. 12. 13.

19. The Plant Cell 5. 6 7. 8. 9. 10. 11. 12. 13.

20. The Plant Cell 6 7. 8. 9. 10. 11. 12. 13.

21. The Plant Cell 7. 8. 9. 10. 11. 12. 13.

22. The Plant Cell 8. 9. 10. 11. 12. 13.

23. The Plant Cell 9. 10. 11. 12. 13.

24. The Plant Cell 9. 10. 11. 12.

25. The Plant Cell 9. 10. 11.

26. The Plant Cell 9. 10.

27. The Plant Cell 9.

28. The Plant Cell

29. Cell Structure and Function Cell wall –Plants, algae, fungi, and some bacteria –Made of cellulose –Very porous –Aids in protection –Gives support to cells

30. Cell Structure and Function Chlorophyll –Green pigment –Absorbs light Chloroplasts –Contains chlorophyll –Found in plants and algae only –Food production in plants

31. Cell Structure and Function Leucoplast –Store food (starch) in plants Potato cells stained with iodine

32. Cell Structure and Function Chromoplasts –Stores pigments in plants Gives fall leaves their color

33. Cell Structure and Function Cilia –Hair-like projections on the surface of the cell -Used for movement cilia

34. Cell Structure and Function Cytoplasm –Gel-like substance on the inside of the cell

35. Cell Structure and Function Endoplasmic reticulum –Series of canals, flattened stacks –Smooth or rough- can have ribosomes attached to it –Internal transport system of cell

36. Cell Structure and Function Flagella Whip-like structures used for movement

37. Cell Structure and Function Golgi body (apparatus) –Chemicals collected from ER in flattened sacs –Stores and packages chemicals –Modifies proteins and moves them through cytoplasm

38. Cell Structure and Function Lysosome –Formed in Golgi bodies –Contains strong degrading enzymes –Digests large particles in the cell

39. Cell Structure and Function Mitochondria –Release energy from cell –The “powerhouse” –Double membrane, inner membrane folded

40. Cell Structure and Function Nucleus –large most prominent structure in cell –Controls cell’s activities –Transmits hereditary information

41. Cell Structure and Function Nuclear envelope –Separates the nucleus from the cytoplasm –Contains pores allows substances to pass in and out of nucleus

42. Cell Structure and Function Nucleolus –Found in nucleus –Produces ribosomes

43. Cell Structure and Function chromosome –Made of DNA and proteins –Rod like structures seen only during cell division –When the cell is not dividing it exists as CHROMATIN –Carry genetic information from one generation to the next

44. Cell Structure and Function chromosome

45. Cell Structure and Function Plasma Membrane or Cell membrane Outer boundary of animal cell Made of double layer of lipids and proteins Allows substances to enter and leave the cell

46. Cell Structure and Function Ribosome –Makes proteins –Tiny knob like structures –Can be bound to ER (rough ER) or free in cytoplasm

47. Cell Structure and Function Vacuole –Very large in plants –Bubble like structures –“warehouse” or “storeroom” of the cell –For water, liquids, food or waste

48. Cell structure and function Centrioles –Animal cells only –Aid in cell division

49. The Cell theory The Cell Theory 1. All living things are composed of cells. 2. Cells are the basic unit of structure and function. 3. All cells come from preexisting cells.

50. Prokaryotes and eukaryotes Types of Cells Prokaryotes- simple cells that have no membrane bound organelles Ex.- bacteria Eukaryotes- cells that have membrane bound organelles Ex.- all multicellular organisms, unicellular protists

51. Prokaryotes and eukaryotes

52. Plants vs animal cells OrganelleAnimalPlant CentriolePresentAbsent Cell wallAbsentPresent ChloroplastAbsentPresent VacuoleSmallLarge

53. Typical cells Cheek cells Onion cells Elodea cells We will be looking at each of these cells in the lab activity

54. Cell Parts Review