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CAIE IGCSE Biology 13.1.2 Kidneys Excrete Urea and Excess Water Questions

Learn how the kidneys excrete urea and excess water and ions.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • State that the kidneys excrete urea and excess water and ions.
  • Use urea-concentration data to infer that the kidneys remove urea from the blood.
  • Relate urine volume and concentration to changes in water intake and loss.

CAIE IGCSE Biology 13.1.2 Kidneys Excrete Urea and Excess Water Questions question 1

[Maximum number: 1]

The carbon dioxide produced during exercise is excreted. Urea is another substance that is excreted.

State the name of the organ that excretes urea.

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