The Transformer Is Used To

question 63

Multiple Choice

The transformer is used to:

• A)isolate the controller from the main power lines.
• B)step up the main power line voltage.
• C)provide the low-voltage do operating voltage for the controller.
• D)All of the above.

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Definitions:

Gap Junction

Junction between cells formed by the joining of two adjacent plasma membranes; it lends strength and allows ions, sugars, and small molecules to pass between cells.

Adhesion Junction

Junction between cells in which the adjacent plasma membranes do not touch but are held together by intercellular filaments attached to buttonlike thickenings.

Tight Junction

A complex of proteins in the cell membrane that creates a watertight seal between cells, preventing leakage of extracellular fluid.

Impermeable Barrier

A material or structure that does not allow fluids or gases to pass through it.