learning targets “i can…” -define “selective permeability.” -model a living cell by using...
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Learning Targets“I Can…”
-Define “selective permeability.”-Model a living cell by using dialysis tubing in a liquid medium.-Predict the results of an experiment that involves animal cells rather than plant cells.
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Membrane Transport Lab
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The cell membrane is selectively permeable
• What does it mean to be “selectively permeable”?Some molecules move easily through the
membrane using diffusion, while other molecules cannot move through the membrane.
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Diffusion through a selectively permeable membrane . . .
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What you will do?
• Add the following substances to a section of dialysis tubing . . . – Starch – Glucose– Albumin (egg white)– Oil
This will represent the “cell.”
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What you will do?
• Add the dialysis tubing to a beaker of iodine
This will represent “outside the cell.”
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Data
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Elodea Cells
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Osmosis in Plant Cells
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Elodea Osmosis
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Elodea Osmosis
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Osmosis in Animal Cells
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Blood Cells
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Blood Cells
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Blood Cells
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References• http://www.youtube.com/watch?v=IRQLRO3dIp8&NR=1• http://www.youtube.com/watch?v=wO1yq6YTJDI• http://www.youtube.com/watch?v=VK-_YHakvho• vcbio.science.ru.nl • http://bcs.whfreeman.com/thelifewire/content/chp05/0502001.html• josts.net • discover.edventures.com • library.thinkquest.org • science.pc.athabascau.ca • wn.com • biologylessons.sdsu.edu • csm.jmu.edu