 
			 
			MCQOPTIONS
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				| 1. | Depolarization and repolarization changes that occur during the action potential are produced by | 
| A. | Negative feedback loops | 
| B. | Carrier mediated transport | 
| C. | Simple diffusion of ions down their concentration gradient | 
| D. | Active transport pumps along the neuron membrane | 
| Answer» E. | |