Here is the link for the active transport videos:
http://highered.mcgraw-hill.com/sites/0072437316/student_view0/chapter6/animations.html#
http://www.biology.arizona.edu/CELL_BIO/problem_sets/membranes/index.html
http://www.northland.cc.mn.us/biology/Biology1111/animations/transport1.html
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