A student draws a fence with several gates as part of a model of cellular transport. Explain what the fence and gate represent, relating their structures to their functions. Explain how the model could represent both active transport using protein pumps and facilitated diffusion.
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This model can be used to demonstrate the cellular transport. The gates of the fences can be supposed as the protein pumps and the other fence demonstrates the lipid bilayer. ... At cellular level, the energy for the active transport is provided by ATP molecules.
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