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.
Of course a fire department can and will establish their own requirements that meet the needs of the community they serve. Here are a few special requirements that a department can require for their fire jobs. 1  Bi-lingual may require a candidate be fluent in Spanish or another language. 2  Hazardous Materials certification. 3  College degree. 4  Ability to pass life guard certification.