Elevated Levels of the Amino Acid ________ Impairs Endothelial Cell

question 4

Multiple Choice

Elevated levels of the amino acid ________ impairs endothelial cell function in the heart, thereby increasing the risk for atherosclerosis.

• A) proline
• B) leucine
• C) homocysteine
• D) valine

---

Definitions:

Comparative Advantage

The ability to produce a good at a lower opportunity cost than others can produce it. Relative costs determine comparative advantage.

Marginal Utility

The additional satisfaction or benefit a consumer receives from consuming one more unit of a good or service.

Consumed

The act of using up a good or service, thus removing it from the market and contributing to economic activity.

Marginal Utility

The variation in pleasure or usefulness a consumer feels from using one more unit of a product or service.