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IB Biology SL D3.2.7 Phenylketonuria Pku Questions

Explain the autosomal-recessive PKU cause, phenylalanine metabolism failure and how low-phenylalanine treatment limits harm in IB Biology SL D3.2.7.

Exam points

Explain the autosomal-recessive PKU cause and link deficient phenylalanine hydroxylase to phenylalanine accumulation and harmful effects.
Explain how low-phenylalanine dietary treatment and early diagnosis or screening reduce the harmful effects of PKU.

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Study D3.2.7—Phenylketonuria (PKU) conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

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Explain the causes and consequences of phenylketonuria (PKU).

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