Edexcel IGCSE Biology 2.79B Kidney transplants
Practise recognising substances in urine and using urea data to calculate daily excretion from percentages or mean masses.
- Syllabus
- First assessment 2019
- Course
- Biology 4BI1
Exam points
- name water, urea or ions as substances found in urine from urinary system context
- calculate mean mass of urea excreted per day from percentage and mass data
2.79B Urine composition question 1
The urinary system is used in excretion.
The diagram shows the urinary system with parts labelled A, B, C and D.
The urinary system produces urine.
Name a substance found in urine.
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