Simple Diffusion

question 18

Multiple Choice

Simple diffusion

• A) requires energy.
• B) utilizes proteins to move molecules across a membrane.
• C) moves molecules against a concentration gradient.
• D) cannot occur without a membrane present.
• E) does not require energy.

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Definitions:

Fixed Costs

Expenses that remain constant regardless of the level of output or sales, including rent, wages, and insurance costs.

Margin of Safety

The difference between actual or expected sales and sales at the break-even point. It measures how close a company is to not covering its fixed costs.

Break-even Sales

The amount of revenue from sales that exactly covers the fixed and variable costs of producing and selling a product, with no profit or loss.

Pretax Net Income

The amount of money a company has earned before taxes are deducted.