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CAIE IGCSE Biology EXTENDED 13.1.7 Urea is formed in the liver

CAIE IGCSE Biology EXTENDED 13.1.7 Urea is formed in the liver
CAIE IGCSE Biology syllabusBiology 0610Exams 2026-2028

Practise tracing excess amino acids from a protein-rich diet to urea formation in the liver and excretion by the kidneys.

How this is tested

  • state that excess amino acids are converted to urea in the liver
  • link high protein intake to increased urea production by the liver
  • distinguish urea formation in the liver from urea excretion by the kidneys
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