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.
So if you are looking to make a career in the service industry, here are some key customer service skill sets that you need to brush up on. 1  Communication skills: 2  Good communication is the lifeblood of the service industry and it's important that your communication style reflects professionalism.o if you are looking to make a career in the service industry, here are some key customer service skill sets that you need to brush up on. 1  Communication skills: 2  Good communication is the lifeblood of the service industry and it's important that your communication style reflects professionalism.