Why Does Phenylalanine Accumulate in Patients with Phenylketonuria

question 31

Multiple Choice

Why does phenylalanine accumulate in patients with phenylketonuria?

• A) They lack an enzyme to break down phenylalanine.
• B) They produce too much phenylalanine.
• C) They lack an enzyme to produce phenylalanine.
• D) They lack an inhibitor of an enzyme to break down phenylalanine.

---

Definitions:

Factor Of Production

A resource used in the production process to generate goods and services, such as labor, land, and capital.

Output

The aggregate output of goods or services from a firm, industry, or the economy as a whole.

Academic Probation

A warning status given to students whose academic performance falls below an institution's requirement.

Managerial Decision

A choice made by managers that determines the direction or action taken by an organization on various issues.