-Refer to Figure 8-2

question 176

Multiple Choice

-Refer to Figure 8-2.The economy's potential level of output on the graph

• A) cannot be determined with this information,only actual output can be found
• B) is rising
• C) exceeds $8 trillion
• D) is less than $8 trillion
• E) equals $8 trillion

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Definitions:

Gap Junctions

Specialized structures in animal cell membranes that allow for direct communication between cells through the passage of ions and molecules.

Tight Junction

Cell junction that fastens together the plasma membrane of adjacent epithelial cells; collectively prevent fluids from leaking between the cells. Composed of adhesion proteins.

Plasmodesma

Cell junction that forms an open channel between the cytoplasm of adjacent plant cells.

Adhering Junction

Cell junction that fastens an animal cell to another cell, or to basement membrane. Connects to cytoskeletal elements inside the cell; composed of adhesion proteins.