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April 16, 2014

Homework Help: y no one anwering my ques

Posted by anmol on Sunday, February 19, 2012 at 9:48pm.

How does active transport differ from passive
transport?
1. Molecules move down a concentration
gradient in active transport.
2. Carrier proteins are used only in active
transport.
3. Energy is required only in active transport.
4. Energy is required only in passive transport

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