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Transcript 
diffusionosmosis2016vastudent.notebook
March 10, 2017
Moving Materials Across The Cell Membrane
Jan 25­4:42 PM
.
Predict what will happen when the stopper is removed from the perfume bottle.
Jan 4­9:01 AM
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Identify the small brown objects.
Describe what you are observing.
Jan 25­5:04 PM
Feb 1­3:52 PM
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Feb 1­4:14 PM
Mar 1­10:32 AM
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Mar 1­10:42 AM
Mar 1­10:32 AM
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Mar 1­10:29 AM
A
0 minutes
B
5 minutes
C
10 minutes
https://www.youtube.com/watch?v=VY0mZUDvbH4
Feb 1­3:19 PM
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March 10, 2017
https://www.youtube.com/watch?v=VY0mZUDvbH4
Feb 1­3:19 PM
Molecules move to achieve equilibrium­ a state of equal concentration
A
B
C
equilibrium
Feb 1­4:18 PM
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O
March 10, 2017
O
O
O
O
O
O
O
O
OXYGEN ATOM
Nov 16 ­ 8:05 PM
• Observe the red molecules. • Over time the red molecules diffuse from an area of high concentration to an area of low concentration.
• Diffusion stops when the red and blue molecules are in equilibrium.
Feb 7­2:58 PM
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Jan 25­5:16 PM
Jan 25­5:25 PM
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March 10, 2017
Feb 1­3:55 PM
Feb 1­4:17 PM
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Feb 1­5:59 PM
Do Now: Complete the diagram below.
Draw arrows on diagrams A and B to show the direction the molecules will move.
Feb 24­8:53 AM
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Mar 3­3:27 PM
Selectively permeable membrane
• A membrane that allows only certain materials to cross it Jan 4­9:01 AM
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March 10, 2017
Selectively permeable membrane
• A membrane that allows only certain materials to cross it Jan 4­9:01 AM
This type of
membrane
limits what can
enter or exit the
cell.
water
glucose
Feb 1­11:47 AM
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March 10, 2017
CELL MEMBRANE
protein
http://mrphome.net/mrp/Membrane_Transport.html
Feb 7­2:22 PM
Feb 1­5:20 PM
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March 10, 2017
Feb 1­5:22 PM
http://mrphome.net/mrp/Membrane_Transport.html
Feb 1­3:28 PM
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March 10, 2017
Feb 7­2:29 PM
DOES NOT USE THE CELL'S ENERGY!
Feb 1­6:31 PM
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sugar molecules
Feb 1­6:35 PM
Sugar molecules move through the protein channel.
sugar molecule
Feb 7­11:08 AM
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March 10, 2017
http://mrphome.net/mrp/Membrane_Transport.html
Feb 7­2:35 PM
Feb 1­5:22 PM
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March 10, 2017
OSMOSIS: The movement of WATER
OSMOSIS
molecules across a selectively
permeable membrane.
Jan 25­4:48 PM
http://zoology.okstate.edu/zoo_lrc/biol1114/tutorials/Flash/Osmosis_Animation.htm
Feb 7­2:59 PM
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March 10, 2017
The Effect of Osmosis on Animal and Plant Cells
HypOtonic Solution
• water moves into
the cell
• the cell swells BURST!
and may burst
• There is a higher
conc.of water Outside.
http://www.nclark.net/osmosisPocus.gif
Feb 7­2:38 PM
The Effect of Osmosis on Animal and Plant Cells
HyPERtonic solution
• water moves out of the cell
http://www.nclark.net/osmosisPocus.gif
• the cell shrinks
BURST!
• There is a higher
conc.of water inside of the cell
http://www.nclark.net/osmosisPocus.gif
Feb 7­2:38 PM
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March 10, 2017
The Effect of Osmosis on Animal and Plant Cells
Isotonic
solution concentration of water is the same
BURST!
in and out side of the cell.
http://www.nclark.net/osmosisPocus.gif
Feb 7­2:38 PM
The Effect of Osmosis on Animal and Plant Cells
BURST!
http://www.nclark.net/osmosisPocus.gif
Feb 7­2:38 PM
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March 10, 2017
http://www.nclark.net/osmosisPocus.gif
Feb 27­12:04 PM
Distilled water is 100% water with NO other dissolved materials.
Feb 7­10:55 AM
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March 10, 2017
Osmosis
Which way will the water flow?
Salt Water Fish
Fresh Water Fish
}
}
80% water
Salt Fresh 15% salt
water
water
5% other minerals
85% water in the cells of the fish
95% water
5% other minerals http://www.nclark.net/osmosisPocus.gif
Nov 16 ­ 8:43 PM
Osmosis in Plant Cells
• Observe Elodea
leaves
•
• 10% NaCl
Predictions?
• 90% water
Plasmolysis
Hypertonic
• Distilled water
Hypotonic
htp://www.tvdsb.on.ca/westmin/science/sbi3a1/Ce
Jan 4­9:01 AM
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EGG OSMOSIS
http://www.youtube.com/watch?v=SSS3EtKAzYc
Feb 21­10:11 AM
Active Transport
Feb 4­2:52 PM
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March 10, 2017
http://mrphome.net/mrp/Membrane_Transport.html
Feb 8­9:53 AM
Transportation of Molecules
•
Passive Transport
• Active Transport
Jan 4­9:01 AM
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March 10, 2017
WASTE
Feb 8­11:27 AM
ENDOCYTOSIS
http://www.youtube.com/watch?v=0w0PmVxDvXE
Feb 4­3:20 PM
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March 10, 2017
http://mrphome.net/mrp/Membrane_Transport.html
Feb 7­3:01 PM
EXOCYTOSIS
Feb 4­3:22 PM
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March 10, 2017
http://www.pbslearningmedia.org/asset/tdc02_int_membraneweb/
Feb 8­11:35 AM
Passive Transport: The movement of molecules from an area of high concentration to an area of lower concentration without the use of energy Passive Transport
3 Types
Diffusion
Facilitated Diffusion
The movement of molecules other than water from high to low
Osmosis
The movement of water from high to low The movement of some large molecules using protein channels.
Nov 16 ­ 8:34 PM
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Active Transport: The movement of substances across a cell membrane using energy Active Transport
Move substances from low to high concentration
Exocytosis
Endocytosis:
vesicles carry materials OUT!
vesicles bring
materials IN
Nov 17 ­ 8:43 PM
Active Transport: The movement of substances across a cell membrane using energy Active Transport
Move substances from low to high concentration
Exocytosis
http://www.pbslearningmedia.org/asset/tdc02_int_membraneweb/
Endocytosis:
Nov 17 ­ 8:43 PM
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March 10, 2017
Diffusion across a dialysis membrane.
starch molecule
iodine molecule
water molecule
Jan 25­4:53 PM
Go to these web sites to view the animations I showed in class.
http://mrphome.net/mrp/Membrane_Transport.html
http://www.pbslearningmedia.org/asset/tdc02_int_membraneweb/
http://www.nclark.net/osmosisPocus.gif
http://www.northland.cc.mn.us/biology/Biology1111/animations/transport
1.html
Feb 1­1:29 PM
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Attachments
gerisch4.avi
Diffusion__amp
osmisisdiffusionannimation13.mht
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