Use the Following Information to Answer the Following Questions

question 30

Multiple Choice

Use the following information to answer the following questions.
Mouse mutations can affect an animal's appetite and eating habits. The ob gene produces a satiety factor (the hormone leptin) . The db gene product is required to respond to the satiety factor (the leptin receptor) .
-PKU (phenylketonuria) is a hereditary condition in which infants and young children cannot ingest any more than tiny amounts of the amino acid phenylalanine without serious neurological results. This damage can be prevented by a severe restriction of phenylalanine in the diet. Which of the following is the nutritional concept that forms the basis for this preventive treatment?

• A)enzymatic hydrolysis
• B)essential nutrients
• C)symbiosis
• D)dehydration synthesis
• E)structural anatomy of the brain

---

Definitions:

Supply Curve

A graphical representation of the relationship between the price of a good and the quantity of the good that suppliers are willing to sell.

Perfectly Inelastic Demand

A situation in which the demand for a product does not change as the price changes.

Perfectly Elastic Supply

describes a market situation where the quantity supplied can change infinitely in response to any change in price.

Elastic Demand

A situation where the demand for a product significantly changes in response to changes in the product's price.