Fatty Acids Are Not a Source of Energy for the Brain

question 17

Multiple Choice

Fatty acids are not a source of energy for the brain because

• A)they cannot diffuse across the blood-brain barrier.
• B)the citric acid cycle does not operate in the brain.
• C)chylomicrons are too large for absorption by brain cells.
• D)they are metabolized before they get as far as the brain.
• E)there is no lipase in the brain.

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Definitions:

Contribution Margin Ratio

The percentage of each sales dollar that remains after deducting variable costs, calculated as contribution margin divided by sales.

Net Operating Income

The profit of a business after operating expenses are subtracted from gross income.

Break-even Point

The production level or sales volume at which total revenues equal total expenses, resulting in no net profit or loss.

Break-even Point

The level of production or sales at which the revenues of a business equal its costs, resulting in neither profit nor loss.