1. Chapter 6 A (more detailed) Tour of the Cell

2. Nucleus: Chromatin v. chromosomes Nucleolus synthesizes ribosomes Nuclear pores.

3. Chapter 6 A (more detailed) Tour of the Cell Nucleus:

4. Chapter 6 A (more detailed) Tour of the Cell Ribosomes: Build proteins Can be free or bound to ER or to nuclear envelope.

5. Chapter 6 A (more detailed) Tour of the Cell Ribosomes:

6. Chapter 6 A (more detailed) Tour of the Cell Endomembrane system: ER Golgi Lysosomes Vacuoles All connected directly or through vesicles.

7. Chapter 6 A (more detailed) Tour of the Cell Endoplasmic reticulum: Continuous with nuclear envelope Network of cisternae Smooth vs. rough.

8. Chapter 6 A (more detailed) Tour of the Cell Smooth ER: Lacks ribosomes Synthesizes lipids Synthesizes steroid hormones Stores Ca +2 in muscle Detoxifies poisons in liver.

9. Chapter 6 A (more detailed) Tour of the Cell Rough ER: Has bound ribosomes Produces cell membrane Produces secretory proteins Products distributed by vesicles.

10. Chapter 6 A (more detailed) Tour of the Cell Endoplasmic reticulum:

11. Chapter 6 A (more detailed) Tour of the Cell Golgi Apparatus: Finishes, sorts, and ships products Stacks of cisternae Cis face and trans face Also synthesizes some macromolecules on its own.

12. Chapter 6 A (more detailed) Tour of the Cell Golgi Apparatus:

13. Chapter 6 A (more detailed) Tour of the Cell Lysosomes: Digestive compartments Hydrolytic enzymes Recycling Phagocytosis

14. Chapter 6 A (more detailed) Tour of the Cell Vacuoles: Diverse functions Plants have large central vacuole

15. Chapter 6 A (more detailed) Tour of the Cell Mitochondria: Cellular respiration Outer & inner membranes, cristae Matrix & intermembrane space

16. Chapter 6 A (more detailed) Tour of the Cell cristae cisternae

17. intermembrane space matrix

18. Chapter 6 A (more detailed) Tour of the Cell Mitochondria:

19. Chapter 6 A (more detailed) Tour of the Cell Chloroplasts: Photosynthesis using chlorophyll Two membranes surround stroma Thylakoids stacked into grana

20. Chapter 6 A (more detailed) Tour of the Cell Chloroplasts: Photosynthesis using chlorophyll Two membranes surround stroma Thylakoids stacked into grana stroma ≠ stoma

21. Intermembrane space stroma lumen

22. stoma

23. Chapter 6 A (more detailed) Tour of the Cell Chloroplasts:

24. Chapter 6 A (more detailed) Tour of the Cell Peroxisomes: Generate and degrade H 2 O 2.

25. Chapter 6 A (more detailed) Tour of the Cell Cytoskeleton: Microtubules Microfilaments Intermediate filaments.

26. Chapter 6 A (more detailed) Tour of the Cell Microtubules: Grow from centrosome Shape the cell Guide movement of organelles Help separate chromosomes in cell division Cilia and flagella are microtubule doublets with dynein.

27. Chapter 6 A (more detailed) Tour of the Cell Microtubules:

28. Chapter 6 A (more detailed) Tour of the Cell Microtubules:

29. Chapter 6 A (more detailed) Tour of the Cell Microtubules:

30. Chapter 6 A (more detailed) Tour of the Cell Microtubules:

31. Chapter 6 A (more detailed) Tour of the Cell Microfilaments: Thin rods of actin Muscle contraction Amoeboid movement Cytoplasmic streaming Support for microvilli.

32. Chapter 6 A (more detailed) Tour of the Cell Microfilaments:

33. Chapter 6 A (more detailed) Tour of the Cell Microfilaments:

34. Chapter 6 A (more detailed) Tour of the Cell Microfilaments:

35. Chapter 6 A (more detailed) Tour of the Cell Microfilaments:

36. Chapter 6 A (more detailed) Tour of the Cell Intermediate filaments: Don’t worry about them.

37. Chapter 6 A (more detailed) Tour of the Cell Cell walls: Cell walls around plant cells are made mostly of cellulose.

38. Chapter 6 A (more detailed) Tour of the Cell Extra-cellular matrix (ECM): Support Adhesion Movement Regulation Animal cells secrete glycoproteins Collagen, etc.

39. Chapter 6 A (more detailed) Tour of the Cell Extra-cellular matrix (ECM):

40. Chapter 6 A (more detailed) Tour of the Cell Intercellular junctions: In plants: Plasmodesmata In animals: Tight junctions Desmosomes Gap junctions.

41. .