Which Is TRUE Regarding Diffusion

question 36

Multiple Choice

Which is TRUE regarding diffusion?

• A)It depends upon the random motion of molecules.
• B)It results in net movement of molecules from regions of low concentration to regions of high concentration.
• C)It is the principle mechanism by which molecules are moved over large distances in the body.
• D)It requires energy in the form of ATP.
• E)It requires integral membrane proteins to occur.

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Definitions:

Operating Leverage

The degree to which a firm or project can increase operating income by increasing revenue, reflecting the proportion of fixed costs to variable costs.

Financial Leverage

The use of borrowed funds to increase the potential return of an investment, which can also increase the risk of loss.

Fixed Costs

Expenses that do not change with the level of production or sales, such as rent, salaries, and insurance.

Average Cost

A method of inventory costing, or determining an investment's cost, by taking the total cost of items and dividing it by the total number of items.