Primary Active Transport Vs Secondary Active Transport -
Imagine primary active transport as a pump filling a water tower at the top of a hill. Secondary active transport is like using the water flowing back down the pipes to turn a mill.
In cellular terms, the "wall socket" is . ATP is the universal currency of energy in the body. In primary active transport, the carrier protein binds directly to ATP. The energy released when ATP is broken down (into ADP and Phosphate) causes the protein pump to change shape, physically moving the molecule from one side of the membrane to the other. primary active transport vs secondary active transport
