Transcript Membrane Transport Lab

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.
Membrane Transport Lab
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.
Diffusion through a selectively
permeable membrane . . .
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.”
What you will do?
• Add the dialysis tubing to a beaker of
iodine
This will represent “outside the cell.”
Data
Elodea Cells
Osmosis in Plant Cells
Elodea Osmosis
Elodea Osmosis
Osmosis in Animal Cells
Blood Cells
Blood Cells
Blood Cells
References
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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