Cell structure and function (cell membrane) - SDL Wksheet A

Video of facilitated diffusion:
http://www.youtube.com/watch?v=I4123hUU8xo&list=FL-cFTJ8NxBjonnjuwSQgSsw&index=26&feature=plpp_video

Video of active transport:
http://www.youtube.com/watch?v=yz7EHJFDEJs&feature=autoplay&list=FL-cFTJ8NxBjonnjuwSQgSsw&lf=plpp_video&playnext=1