What must a phenylketonuria patient leave out of his or her diet?

A. a specific amino acid

B. all amino acids

C. all carbohydrates

D. some specific carbohydrates

Actually, the answer is A!!!! If ya'll are taking Primavera Bio A, I can guarantee you that it's A

To determine the correct answer, we need to understand what phenylketonuria (PKU) is and how it affects the body's ability to process certain nutrients.

PKU is a genetic disorder characterized by an inability to break down an amino acid called phenylalanine. Normally, our bodies convert phenylalanine into another amino acid called tyrosine, which is necessary for normal growth and development. However, individuals with PKU lack the enzyme needed to convert phenylalanine into tyrosine, leading to a buildup of phenylalanine in their blood.

Due to this metabolic issue, individuals with PKU must strictly limit their intake of phenylalanine to prevent its accumulation in the body. Therefore, the correct answer would be:

A. a specific amino acid

A person with PKU needs to leave out the specific amino acid called phenylalanine from their diet. By avoiding foods that contain phenylalanine, individuals with PKU can manage their condition and prevent the negative health effects associated with the buildup of phenylalanine in their bodies.

B. In the PKU diet, animal protein is avoided because it contains the highest amounts of phenylalanine. Examples of animal protein to be avoided include red meat, fish, poultry and milk and milk products. PKU patients are to eat low-protein foods such as low-protein breads, pastas and cereals.