Chapter 3 - Section 2Moving Cellular Materials
Selectively Permeable             A cell’s membrane is             selectively permeable. It             allows some thing...
The way in which substances move through acell membrane depends on:
The way in which substances move through acell membrane depends on:    1. the size of the particles
The way in which substances move through acell membrane depends on:    1. the size of the particles    2. the path taken t...
The way in which substances move through acell membrane depends on:    1. the size of the particles    2. the path taken t...
• The movement of substances through the cell  membrane without the input of energy is  called:
• The movement of substances through the cell  membrane without the input of energy is  called:       passive transport
• The movement of substances through the cell  membrane without the input of energy is  called:        passive transport• ...
• The movement of substances through the cell  membrane without the input of energy is  called:        passive transport• ...
• The movement of substances through the cell  membrane without the input of energy is  called:        passive transport• ...
• The movement of substances through the cell  membrane without the input of energy is  called:        passive transport• ...
diffusion
• Movement of solids, liquids, and gases from an area  where there is relatively more of them into an area  where there is...
• Movement of solids, liquids, and gases from an area  where there is relatively more of them into an area  where there is...
• Movement of solids, liquids, and gases from an area  where there is relatively more of them into an area  where there is...
diffusion
diffusion
equilibrium
Food Colouring
Air Sac  in Lunglots of O2
Air Sac    little of O2  in Lung         Redlots of O2    blood cell
Air Sac    little of O2  in Lung         Redlots of O2    blood cell
Air Sac             little of O2  in Lung                  Red             oxygenlots of O2             blood cell
lots of O2   Redblood cell             skin cells             little O2
lots of O2   Redblood cell        oxygen             skin cells             little O2
skin cellslots of O2
skin cellslots of O2
osmosis
• Water molecules move by diffusion into and out of  cells.                                        osmosis
• Water molecules move by diffusion into and out of  cells.• The diffusion of water through a cell membrane is called  osm...
• Losing water from a plant  cell causes its cell membrane  to come away from its cell  wall.
• Losing water from a plant  cell causes its cell membrane  to come away from its cell  wall.• This reduces pressure  agai...
• Losing water from a plant  cell causes its cell membrane  to come away from its cell  wall.• This reduces pressure  agai...
• If water around the cells  would move into them, the  cells would fill with water.
• If water around the cells  would move into them, the  cells would fill with water.• Their cell membranes would  press aga...
• If water around the cells  would move into them, the  cells would fill with water.• Their cell membranes would  press aga...
• If water around the cells  would move into them, the  cells would fill with water.• Their cell membranes would  press aga...
Carrots & Eggs
Is the same true in animal cells?
facilitated diffusion
• Some substances pass easily through the cell  membrane by diffusion.                                       facilitated  ...
• Some substances pass easily through the cell  membrane by diffusion.• Other substances, such as glucose molecules, are s...
• Some substances pass easily through the cell  membrane by diffusion.• Other substances, such as glucose molecules, are s...
Review
•3 types of Passive Transport:  •diffusion  •osmosis  •facilitated diffusion       Review
activetransport
• Sometimes a substance is needed inside a cell even  though the amount of that substance inside the cell is  already grea...
• Sometimes a substance is needed inside a cell even  though the amount of that substance inside the cell is  already grea...
activetransport
activetransport
activetransport
HOW??          active        transport
HOW??1. The transport protein binds to the   needed particle.                                          active             ...
HOW??1. The transport protein binds to the   needed particle.2. Energy is used to move the particle   through the cell mem...
HOW??1. The transport protein binds to the   needed particle.2. Energy is used to move the particle   through the cell mem...
• The roots of a plant already  might contain more mineral  molecules than the  surrounding soil does.
• The roots of a plant already  might contain more mineral  molecules than the  surrounding soil does.• Normally the miner...
• The roots of a plant already  might contain more mineral  molecules than the  surrounding soil does.• Normally the miner...
• The roots of a plant already  might contain more mineral  molecules than the  surrounding soil does.• Normally the miner...
Endocytosis    and Exocytosis
• Large protein molecules and  bacteria cannot enter a cell by  diffusion or by using the cell  membrane transport protein...
• Large protein molecules and  bacteria cannot enter a cell by  diffusion or by using the cell  membrane transport protein...
• The cell membrane folds in on  itself, enclosing the item in a  sphere called a vesicle.
• The cell membrane folds in on  itself, enclosing the item in a  sphere called a vesicle.• This process of taking substan...
• The cell membrane folds in on  itself, enclosing the item in a  sphere called a vesicle.• This process of taking substan...
• The contents of a vesicle can be released by a cell using  the process called exocytosis.
• The contents of a vesicle can be released by a cell using  the process called exocytosis.• The opposite process is calle...
• The contents of a vesicle can be released by a cell using  the process called exocytosis.• The opposite process is calle...
• The contents of a vesicle can be released by a cell using  the process called exocytosis.• The opposite process is calle...
Turn to Page 81
3.2 Moving Cellular Substance
3.2 Moving Cellular Substance
3.2 Moving Cellular Substance
3.2 Moving Cellular Substance
3.2 Moving Cellular Substance
3.2 Moving Cellular Substance
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3.2 Moving Cellular Substance

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  • 3.2 Moving Cellular Substance

    1. 1. Chapter 3 - Section 2Moving Cellular Materials
    2. 2. Selectively Permeable A cell’s membrane is selectively permeable. It allows some things to enter or leave the cell while keeping other things outside or inside the cell.
    3. 3. The way in which substances move through acell membrane depends on:
    4. 4. The way in which substances move through acell membrane depends on: 1. the size of the particles
    5. 5. The way in which substances move through acell membrane depends on: 1. the size of the particles 2. the path taken through the membrane
    6. 6. The way in which substances move through acell membrane depends on: 1. the size of the particles 2. the path taken through the membrane 3. whether or not energy is used
    7. 7. • The movement of substances through the cell membrane without the input of energy is called:
    8. 8. • The movement of substances through the cell membrane without the input of energy is called: passive transport
    9. 9. • The movement of substances through the cell membrane without the input of energy is called: passive transport• There are 3 types of passive transport:
    10. 10. • The movement of substances through the cell membrane without the input of energy is called: passive transport• There are 3 types of passive transport: • diffusion
    11. 11. • The movement of substances through the cell membrane without the input of energy is called: passive transport• There are 3 types of passive transport: • diffusion • osmosis
    12. 12. • The movement of substances through the cell membrane without the input of energy is called: passive transport• There are 3 types of passive transport: • diffusion • osmosis • facilitated diffusion
    13. 13. diffusion
    14. 14. • Movement of solids, liquids, and gases from an area where there is relatively more of them into an area where there is relatively fewer of them is called diffusion. diffusion
    15. 15. • Movement of solids, liquids, and gases from an area where there is relatively more of them into an area where there is relatively fewer of them is called diffusion.• This movement will continue until the relative number of these molecules is equal in the two areas. diffusion
    16. 16. • Movement of solids, liquids, and gases from an area where there is relatively more of them into an area where there is relatively fewer of them is called diffusion.• This movement will continue until the relative number of these molecules is equal in the two areas.• When this occurs, equilibrium is reached and diffusion stops. diffusion
    17. 17. diffusion
    18. 18. diffusion
    19. 19. equilibrium
    20. 20. Food Colouring
    21. 21. Air Sac in Lunglots of O2
    22. 22. Air Sac little of O2 in Lung Redlots of O2 blood cell
    23. 23. Air Sac little of O2 in Lung Redlots of O2 blood cell
    24. 24. Air Sac little of O2 in Lung Red oxygenlots of O2 blood cell
    25. 25. lots of O2 Redblood cell skin cells little O2
    26. 26. lots of O2 Redblood cell oxygen skin cells little O2
    27. 27. skin cellslots of O2
    28. 28. skin cellslots of O2
    29. 29. osmosis
    30. 30. • Water molecules move by diffusion into and out of cells. osmosis
    31. 31. • Water molecules move by diffusion into and out of cells.• The diffusion of water through a cell membrane is called osmosis. osmosis
    32. 32. • Losing water from a plant cell causes its cell membrane to come away from its cell wall.
    33. 33. • Losing water from a plant cell causes its cell membrane to come away from its cell wall.• This reduces pressure against its cell wall, and a plant cell becomes limp.
    34. 34. • Losing water from a plant cell causes its cell membrane to come away from its cell wall.• This reduces pressure against its cell wall, and a plant cell becomes limp.
    35. 35. • If water around the cells would move into them, the cells would fill with water.
    36. 36. • If water around the cells would move into them, the cells would fill with water.• Their cell membranes would press against their cell walls.
    37. 37. • If water around the cells would move into them, the cells would fill with water.• Their cell membranes would press against their cell walls.• Pressure would increase, and the cells would become firm.
    38. 38. • If water around the cells would move into them, the cells would fill with water.• Their cell membranes would press against their cell walls.• Pressure would increase, and the cells would become firm.
    39. 39. Carrots & Eggs
    40. 40. Is the same true in animal cells?
    41. 41. facilitated diffusion
    42. 42. • Some substances pass easily through the cell membrane by diffusion. facilitated diffusion
    43. 43. • Some substances pass easily through the cell membrane by diffusion.• Other substances, such as glucose molecules, are so large that they can enter the cell only with the help of molecules in the cell membrane called transport proteins. facilitated diffusion
    44. 44. • Some substances pass easily through the cell membrane by diffusion.• Other substances, such as glucose molecules, are so large that they can enter the cell only with the help of molecules in the cell membrane called transport proteins.• This process, a type of passive transport, is known as facilitated diffusion. facilitated diffusion
    45. 45. Review
    46. 46. •3 types of Passive Transport: •diffusion •osmosis •facilitated diffusion Review
    47. 47. activetransport
    48. 48. • Sometimes a substance is needed inside a cell even though the amount of that substance inside the cell is already greater than the amount outside the cell. active transport
    49. 49. • Sometimes a substance is needed inside a cell even though the amount of that substance inside the cell is already greater than the amount outside the cell.• When an input of energy is required to move materials through a cell membrane, active transport takes place. active transport
    50. 50. activetransport
    51. 51. activetransport
    52. 52. activetransport
    53. 53. HOW?? active transport
    54. 54. HOW??1. The transport protein binds to the needed particle. active transport
    55. 55. HOW??1. The transport protein binds to the needed particle.2. Energy is used to move the particle through the cell membrane. active transport
    56. 56. HOW??1. The transport protein binds to the needed particle.2. Energy is used to move the particle through the cell membrane.3. The particle is released by the transport protein. active transport
    57. 57. • The roots of a plant already might contain more mineral molecules than the surrounding soil does.
    58. 58. • The roots of a plant already might contain more mineral molecules than the surrounding soil does.• Normally the mineral molecules move out of the root by diffusion or facilitated diffusion.
    59. 59. • The roots of a plant already might contain more mineral molecules than the surrounding soil does.• Normally the mineral molecules move out of the root by diffusion or facilitated diffusion.• But here the mineral need to move across the membrane and into the cell.
    60. 60. • The roots of a plant already might contain more mineral molecules than the surrounding soil does.• Normally the mineral molecules move out of the root by diffusion or facilitated diffusion.• But here the mineral need to move across the membrane and into the cell.• To do this energy is needed.
    61. 61. Endocytosis and Exocytosis
    62. 62. • Large protein molecules and bacteria cannot enter a cell by diffusion or by using the cell membrane transport proteins. Endocytosis and Exocytosis
    63. 63. • Large protein molecules and bacteria cannot enter a cell by diffusion or by using the cell membrane transport proteins.• They can enter by being Endocytosis surrounded by the cell membrane. and Exocytosis
    64. 64. • The cell membrane folds in on itself, enclosing the item in a sphere called a vesicle.
    65. 65. • The cell membrane folds in on itself, enclosing the item in a sphere called a vesicle.• This process of taking substances into a cell by surrounding it with the cell membrane is called endocytosis.
    66. 66. • The cell membrane folds in on itself, enclosing the item in a sphere called a vesicle.• This process of taking substances into a cell by surrounding it with the cell membrane is called endocytosis.• Some one-celled organisms take in food this way.
    67. 67. • The contents of a vesicle can be released by a cell using the process called exocytosis.
    68. 68. • The contents of a vesicle can be released by a cell using the process called exocytosis.• The opposite process is called endocytosis.
    69. 69. • The contents of a vesicle can be released by a cell using the process called exocytosis.• The opposite process is called endocytosis.• A vesicle’s membrane fuses with a cell’s membrane, and the vesicle’s contents are released.
    70. 70. • The contents of a vesicle can be released by a cell using the process called exocytosis.• The opposite process is called endocytosis.• A vesicle’s membrane fuses with a cell’s membrane, and the vesicle’s contents are released.• Cells in your stomach use this process to release chemicals that help digest food.
    71. 71. Turn to Page 81
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