Microorganisms Require Small Quantities of ______ for Enzyme Function and Maintenance

question 28

Multiple Choice

Microorganisms require small quantities of ______ for enzyme function and maintenance of protein structure:

• A)electrolytes
• B)macronutrients
• C)water
• D)growth factors
• E)trace elements

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Definitions:

Pilot Devices

Control instruments that command the operation of electrical machinery indirectly, often through the use of relays or contactors.

Motor Starter

A device that controls the use of electrical power to equipment, especially to start and stop motors.

Control Coil

A coil used in a relay or other electrical device, which creates a magnetic field when electricity is passed through it, thereby controlling the operation of the device.

Two-wire Control

A control circuit configuration where only two conductors are used to complete the circuit between the control device and the equipment being controlled.