Voltage-gated ion channels are responsible for generation of electrical signals in cell membranes. Their principal subunits are members of a gene family and can function as voltage-gated ion channels by themselves. They are expressed in association with one or more auxiliary subunits which increase functional
3. Pass the medical exam. To be a firefighter, you will need to have coordination, agility, and strength, as well as an overall high level of physical fitness. You must also be in general good health and be free of any physical constraints.
A fire science degree is the best way to start your career. Breaking into the firefighting business might be more difficult than you think. It is, after all, a rewarding job that will leave you with a sense of accomplishment, as these testimonials from Fort Lauderdale (Fla.) firefighters illustrate.