1. MEMBRANE STRUCTURE AND FUNCTION

2. Label the structure of the cell membrane

3. Phospholipid

5. Label the cell membrane

6. Functions of the phospholipids and carbohydrates

7. Functions of membrane proteins
Activity 5E

8. MEMBRANE TRANSPORT

10. Simple Diffusion Definition: What is the energy source of the diffusion? Is it an active or passive transport?

11. What are the factors that affect diffusion rate: the concentration gradient 2- temperature 3- size of the molecule 4- charge of the molecule 5- lipid solubility of the molecule

12. Diffusion of solvent

14. Hypertonic solution: Hypotonic solution: Isotonic solutions:

15. Transport across membranes
2. Transport with a protein
Facilitated diffusion
Active transport
3. Transportation of large molecules (bulk transport)
Endocytosis
Exocytosis
1. Simple diffusion
Diffusion of solute
Diffusion of solvent

18. Plasmolysis: Deplasmolysis:

19. Osmotic pressure: the tendency of a solution to take up water Turgor pressure: the force applied to a cell wall after the swelling of the cell .

20. What is the water balance problem of the cells which do not have cell wall?

21. What is the water balance problem of the cells which have cell wall?

22. Facilitated Diffusion

23. Fig. 5.6 Solute molecule Transport protein
Figure 5.6 Transport protein providing a channel for the diffusion of a specific solute across a membrane.
Transport
protein 23

24. Facilitated Diffusion 1 Definition: Does not require ATP Which molecules are transported by facilitated diffusion?

27. Fig. 5.8 Transport protein Protein changes shape Phosphate detaches
Solute
Figure 5.8 Active transport of a solute across a membrane. 1
Solute binding 2
Phosphorylation 3
Transport 4
Protein reversion

28. Active Transport 1 Definition:

30. Which one is passive transport?

32. Exocytosis

33. The cell secretes macromolecules by the fusion of vesicles with the plasma membrane This process is called exocytosis

34. Endocytosis

35. In endocytosis, the cell takes macromolecules and particulate matter by forming new vesicles from plasma membrane.

36. There are two types of endocytosis: 1. Phagocytosis 2. Pinocytosis

37. Active transport animation

38. In phagocytosis, a. the cell engulfs a particle by wrapping pseudopodia (false feet) around it b. And packages the particle within a membrane- enclosed sac WBC, amoeba

39. In pinocytosis, the cell ‘gulps’ droplets of extracellular fluid into tiny vesicles

40. Fig. 5.9