Membranes

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Membranes Modified from Stephen Taylor i-Biology.net Photo credit: Plasmolysis by MNolfvia http://commons.wikimedia.org/wiki/File:Rhoeo_Discolor_-_Plasmolysis.jpg
Plasma Membrane • Label the diagram with components & functions • Identify components that are involved in transport.
Stephen Taylor http://sciencevideos.wordpress.com
Explain passive transport across membranes by simple diffusion & facilitated diffusion.

Plasmolysis in Elodea and in onion cells. Set up slides of Elodea cells and onion cells, with tap water medium. Find cells under the microscope. Draw and label what you see. Include magnification. You might need to try different stains. Draw salt solution through the slides. Observe and draw the effects. Explain the effects of changing the salt concentration on the cells.
Active transport usesenergy, in the form of ATP, to move molecules across a selectively permeable membraneagainst the concentration gradient, using protein pumps.
Active transport usesenergy, in the form of ATP, to move molecules across a selectively permeable membraneagainst the concentration gradient, using protein pumps.
http://glencoe.mcgraw-hill.com/sites/0015081981/student_view0/chapter2/sodium-potassium_exchange_pump.htmlhttp://glencoe.mcgraw-hill.com/sites/0015081981/student_view0/chapter2/sodium-potassium_exchange_pump.html Stephen Taylor http://sciencevideos.wordpress.com
Annotate this diagram to explain vesicle transport & exocytosis. Animated tutorial: http://bcs.whfreeman.com/thelifewire8e/content/cat_040/0504003.html
https://highered.mcgraw-hill.com/sites/007352543x/student_view0/chapter5/endocytosis_and_exocytosis.htmlhttps://highered.mcgraw-hill.com/sites/007352543x/student_view0/chapter5/endocytosis_and_exocytosis.html Stephen Taylor http://sciencevideos.wordpress.com
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Membranes

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