1. Where does life come from?
I can develop and use a model to describe the function of a cell as a whole and the ways the different parts of cells contribute to the function

3. What are cell organelles?

5. Organelles
Special structures that perform necessary functions of the cell
Think of a cell as a factory whose main product is proteins.
Tiny organs. Just like organs in your body you need them to function properly or else it will DIE.

6. The Cell Membrane Controls movements into and out of the cell
Everything the cell needs enters through cell membrane
All cells have membranes
Is made of a phospholipid bi- layer.

7. Cytoplasm
Jelly-like material that supports the organelles inside the cell
Gives the cell its shape
Constantly Moving

8. Nucleus Directs all of the cell’s activities including reproduction
Contains genetic material (DNA) the “blueprint” or “instruction manual” for the cell

9. Mitochondria
Mitochondria
Convert energy in food molecules to energy the cell can use to carry out its functions
Produce energy for the cell – site of cellular respiration. “The Powerhouse”
Double membrane-bound, kidney shaped.

10. Mitochondria

11. Endoplasmic Reticulum
Rough ER
Smooth ER
Network of passageways that carries materials from one part of the cell to another
Rough ER: has ribosomes
Smooth ER: no ribosomes
tubes and channels

12. Electron micrograph of smooth endoplasmic reticulum

13. Rough endoplasmic reticulum with ribosomes

14. Ribosomes
Ribosomes
Free Ribosomes
A small grain-like structure in the cytoplasm of a cell where proteins are made (protein synthesis)
May be attached to ER or floating in the cytoplasm
small circular organelles

15. Golgi Apparatus
Golgi Apparatus
Receives proteins and other newly formed materials from the ER, packages them and distributes them to other parts of the cell
Release Materials outside the cell
Pancake-shaped layered organelle

16. Golgi Apparatus

17. Vacuoles
Stores water, food, waste products and other materials for the cell
Plays a role in intercellular digestion
Are much larger in plant cells.

18. What is the difference between an animal cell and a plant cell?

19. Plant vs Animal Cells
Plant and animal cells have a lot of the same organelles.

20. Animal Cell

21. Lysosomes
Lysosomes
Contain Chemicals that break down food particles and worn-out cell parts
Clean up crew
Small membrane-bound organelles

22. Plant Cell

23. Cell Wall
Cell Wall
Rigid layer of non-living material that surrounds the cells of plants and some other organisms
Provides support and protection to the cell
Made of cellulose

24. Chloroplasts
Chloroplasts
Capture energy from sunlight and use it to produce food for the cell
Site of photosynthesis (converting sun and CO2 into sugar).
Membrane bound organelles that contain chlorophyll

25. Plant Cell
Small green chloroplasts can be seen inside each plant cell

26. cork cells

27. Pollen
grains

28. bone cells
growth
plate

29. onion
cells

30. human red
blood cells

31. bacteria

32. Brain
cells

33. Neuromuscular junction – where nerve cells connect with muscle cells

34. moss cells

35. Sperm and egg - conception

36. blood
clot

37. Hair cells in inner ear

38. rods and cones
– cells of retina

39. tooth plaque – bacteria + food particles

40. basal cell carcinoma – skin cancer

41. brain cells

42. normal red blood cell ---------- sickled red blood cell

43. common cold virus

44. human immunodeficiency virus (HIV)

45. H1N1 virus (swine flu)