During muscle contraction, the cross-bridge detaches when 1  ________. the myosin head binds to an ADP molecule. 2  the myosin head binds to an ATP molecule. 3  calcium ions bind to troponin. 4  calcium ions bind to actin.
A plant operator is a person who supervises the operation of an industrial plant. The term is usually applied to power plants or chemical plants such as gas extraction, petrochemical or oil refinery or other chemical processes.There may be a control room in the plant where the operator works.These are known as board operators. Generally, operators are assigned to a particular unit, on which they are responsible for a certain function or area of equipment.he term is usually applied to power plants or chemical plants such as gas extraction, petrochemical or oil refinery or other chemical processes. There may be a control room in the plant where the operator works.
Someone who can handle multiple situations in a fashion that can only be described as Awesome, spectucular, and, above all else, awesometacular. Usually a smooth operator is someone who tends to be on top of things, and in is usually in control of any given situation. If he/she isn't in control of a situation, they usually find a way to gain control of it to make it more awesome for everyone involved. Smooth Operators are rarely in trouble, and, when they are, they can usually get out of these situations quickly, elegantly and with a zero percent chance of casualties. Kevin is a smooth operator. Julie thinks That Kevin is one smooth operator.. Everyone agrees, and life is awesome.