1. Chapter 3: Cells

2. Learning Objectives

4. 3.1 All organisms are made of cells.

6. Cell Theory

7. Take-home message 3.1

8. 3.2 Prokaryotic cells are structurally simple, but there are many types of them. Every cell on earth falls into one of two basic categories:

10. Take-home message 3.2

11. Take-home message 3.2

12. 3.3 Eukaryotic cells have compartments with specialized functions.

13. Eukaryotic cells have organelles.

17. Why are plasma membranes such complex structures?

19. Take-home message 3.4

20. 3.5 Molecules embedded within the plasma membrane help it perform its functions.

21. What determines whether a protein resides on the surface or extends through the bilayer?

22. There are four primary types of membrane proteins, each of which performs a different function.

23. The Plasma Membrane “Fluid Mosaic”

24. Take-home message 3.5

25. Take-home message 3.5

26. Take-home message 3.5

27. 3.7 Membrane surfaces have a “fingerprint” that identifies the cell.

29. Take-home message 3.7