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.
A: Operators are mechanisms that control access through gates, barrier arms, commercial and residential garage doors. They may be set up to operate with keys, key pads, telephone entry, radios with intercoms, timers, cards, readers, electronic sensors, payment systems and more.DGO Access is a systems integration business.: Trolley operators are typically used with standard sectional doors and commonly look like standard residential garage doors with a rail that mounts parallel to the ceiling.