Smog Is

question 19

Multiple Choice

Smog is

• A)a combination of smoke and fog.
• B)a combination of smoke and organic waste.
• C)only found in California.
• D)more of a nuisance than a threat to health.

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Definitions:

Tight Junction

A tightly sealed point of contact between two cells, preventing the passage of substances between the cells.

Plasma Membranes

A pair of lipid layers that forms a barrier around the cell's cytoplasm, controlling the import and export of cellular materials.

Adhesion Belt

A protein complex located just below the tight junctions in epithelial cells, contributing to the formation of an adhesive junction that holds cells together.

Apocrine

A type of gland that secretes substances (such as sweat) by shedding part of the cell, found in various parts of the body including armpits and groin.