In Phenylketonuria, an Individual Cannot Break Down the Amino Acid

question 32

Multiple Choice

In phenylketonuria, an individual cannot break down the amino acid phenylalanine. Molecules that include phenylalanine build up in the blood, which causes intellectual disability and other symptoms. This inherited disease can be controlled by following a diet that is very low in

• A)carbohydrates.
• B)cholesterol.
• C)protein.
• D)nucleic acids.

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Definitions:

Retinal Disparity

The slight difference in the visual images that each eye perceives because of their different angles in viewing the world, which is a key component in depth perception.

Oval Window

A membrane-covered opening that leads from the middle ear to the cochlea within the inner ear, playing a crucial role in the process of hearing.

Cochlea

The spiral-shaped, fluid-filled inner ear structure responsible for converting sound waves into nerve impulses to be interpreted by the brain.

Trichromat

A person with normal color vision.