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IB Biology HL D3.3.7 Hl Kidney Role Questions

Analyse how kidneys and nephrons remove urea and regulate water and ion concentrations in blood and urine through filtration, reabsorption and osmoregulation.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Explain how urea is filtered from blood and concentrated in urine as water is reabsorbed along the nephron.
  • Explain how filtration and selective reabsorption regulate urine water and ion concentrations, including ADH-dependent water reabsorption.

IB Biology HL D3.3.7 Hl Kidney Role Questions question 1

[Maximum number: 1]

What is normally found in the urine of a healthy individual?

A

Glucose

B

Red blood cells

C

Proteins

D

Sodium ions

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