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.
For example the median expected annual pay for a typical Chemical Plant Operator in the United States is $48,636, so 50% of the people who perform the job of Chemical Plant Operator in the United States are expected to make less than $48,636. Source: HR Reported data as of October 2015. 1  Salary. 2  Salary + Bonus. 3  Benefits.