Phenylketonuria Is Caused by

question 62

Multiple Choice

Phenylketonuria is caused by

• A) an inherited lack of an enzyme.
• B) neurofibrillary tangles.
• C) toxic chemicals released by a virus.
• D) accumulation of waste products in the brain.
• E) prenatal exposure to rubella.

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Definitions:

Resolution

The act of solving or settling a problem, dispute, or contentious matter.

Light Microscope

A device that uses visible light and a system of lenses to magnify images of small samples, allowing for the observation of cells and their structures.

Plasma Membrane

A semi-permeable membrane that surrounds the cell, controlling the entry and exit of substances, thus maintaining the cell's integrity.

Immune System

A complex network of cells, tissues, and organs that work together to defend the body against infections and maintain overall health.