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.
FIRE EXTINGUISHER TRAINING. PROGRAM. Fire safety, at its most basic, is based upon the principle. of keeping fuel sources and ignition sources separate. Three things must be present at the same time to produce fire: 1. Enough oxygen to sustain combustion. 2. Enough heat to reach ignition temperature. 3. Some fuel or combustible material. These three elements form the fire triangle that is necessary for a fire to burn. Together, they produce the chemical reaction that is fire. Take away any of these things and the fire will be extinguished. FUEL CLASSIFICATIONS Fires are classified according to the type of fuel that is burning. If you use the wrong type of extinguisher on the wrong class of fire, you might make matters worse.