Transport across the cell membrane
I. Diffusion is the passive movement of particles.
II. The Speed of diffusion depends on several factors.
III. Osmosis is a special case of diffusion.
Active Transport
I. Root hairs take in minerals using active transport.
II. We need active transport to stop us from starving.
http://www.youtube.com/watch?v=1ZFqOvxXg9M&feature=related
Finish questions 1-8
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