1. Transport – in / out of Cell Membrane

2. reactions
movement

3. polar

4. Membrane Features all some living cell membrane

5. Water, carbon dioxide oxygen glucose Na+ (sodium), H+ (hydrogen)

6. http://www. google. ca/imgres

8. Transport Mechanisms

9. inside
outside
Random
away

13. https://www. youtube. com/watch

14. 1. Diffusion
(Passive Transport)

15. REVIEW:

16. Process of diffusion
When crystals of dye are placed in water, they are concentrated in one area.

19. energy
down
increases
increases
faster
selectively

20. 2. Osmosis
(Passive Transport)

22. Osmosis Animation

30. Tonicity Summary

31. Let’s practice …

32. Practice # 1: Solution B Solution A 6% NaCl 94% H2O 6 % NaCl 94 % H2O
Solution A is _isotonic /hypotonic / hypertonic_ to solution B?
Solution B is __ _isotonic / hypotonic / hypertonic_ to solution A?

33. Practice # 2: Solution B Solution A 10% NaCl 90% H2O 2 % NaCl 98 % H2O
Solution A is _isotonic /hypotonic / hypertonic_ to solution B?
Solution B is __ _isotonic / hypotonic / hypertonic_ to solution A?

34. Practice # 2:

36. Net movement of water is from A to B.
A is HYPOTONIC to B
B is HYPERTONIC to A
C is ISOTONIC to D
D is ISOTONIC to C

37. Water will always from an area more water to an area of lower water levels – goal is to reach equilibrim (equal concentrations or isotonicity)

38. Equilibrium: osmotic pressure = hydrostatic pressure.
Add protein to side B
Equilibrium: osmotic pressure = hydrostatic pressure.
Semi-permeable membrane

40. p 86 in text

41. p 86 in text

42. 3. Facilitated Transport
(Passive Transport)

43. 3. Facilitated Transport
(Passive Transport)

44. Facilitated Diffusion

45. High to low concentration
(down a concentration gradient.)
carrier
polar
hundreds
energy

46. Facilitated Diffusion

47. very SPECIFIC Facilitated Diffusion :
The protein channels and carriers are
very SPECIFIC

48. Combo of VP and M Paas slides
Done to here
Combo of VP and M Paas slides

49. Active Transport

50. ENERGY
Carrier (transport)
against
steep

51. conformations
inside
Phosphorylation

52. positive
potential

54. H+ diffuses in with sucrose. Sucrose can only enter with H+.
H+ pumped out
H+ diffuses in with sucrose. Sucrose can only enter with H+.

56. Exocytosis
Exocytosis deposits substances on the outside of the cell and secretion occurs.

57. Phagocytosis
Phagocytosis occurs when the substance to be transported into the cell is large; amoebas ingest food by phagocytosis. Certain types of human white blood cells are amoeboid and engulf worn-out cellular debris or bacteria using phagocytosis. When an endocytic vesicle fuses with a lysosome, digestion of the vesicle contents occurs.

58. Phagocytosis
Pseudopods
lysosome
lysososome

59. Pinocytosis
Pinocytosis occurs when a macromolecule, such as a polypeptide, is to be transported into the cell. The resulting vesicle or vacuole is small. Pinocytosis occurs continuously, but the loss of plasma membrane due to vesicle formation is offset by exocytosis.

60. Pinocytosis
Non-discriminating
Non-discriminating

61. Receptor-mediated endocytosis
discriminating
Receptor-mediated endocytosis is a form of pinocytosis. The substance to be taken in binds with a specific receptor protein, which migrates to a pit or is already in a coated pit. The resulting vesicle contains the substance and the receptor. Receptor-mediated endocytosis is responsible for cells taking uplow-density lipoprotein (LDL) when LDL receptors gather in a coated pit. In individuals with a genetic disorder called familial hypercholesterolemia, the LDL receptor is unable to properly bind to the coated pit, and cells are unable to take up cholesterol. Cholesterol accumulates in the walls of arterial blood vessels, causing severe health problems.

62. Receptor-mediated discriminating

63. bulk
receptor proteins

64. Read and make notes on Chapter 4
Read and make notes on Chapter 4. Read critically and take selective notes.

65. DOWN
UP (AGAINST)
Energy (ATP)
NO added energy
Diffusion
Osmosis
Phagocytosis
Active
Transport
Facilitated
Diffusion
Pinocytosis

66. DOWN
UP (AGAINST)
Energy (ATP)
NO added energy
Diffusion
Osmosis
Phagocytosis
Active
Transport
Facilitated
Diffusion
Pinocytosis