Waec Model Questions Vol1 2024 Biology Question 6

Practice essay / theory question 6 from the 2024 Waec Model Questions Vol1 Biology examination. This question covers Excretion .

Waec Model Questions Vol1 2024 Biology Essay / Theory

Topic: Excretion

Question 6 WAEC_MODEL_QUESTIONS_VOL1 • 2024 • BIOLOGY • essay

The kidneys play a vital role in maintaining the chemical composition of body fluids through the processes of filtration, reabsorption and secretion.

Question Parts

( a )

Outline the three main steps involved in the formation of urine in a single nephron, indicating where each step occurs.

( b )

A person switches to a high‑protein diet that increases the daily production of urea. Explain how the nephron adjusts its function to cope with the increased urea load while conserving water.

( c )

Describe the mechanism by which antidiuretic hormone (ADH) increases water reabsorption in the kidneys and predict the likely urinary concentration in a patient with insufficient ADH secretion (e.g., diabetes insipidus).

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About This Question

This is Waec Model Questions Vol1 2024 Biology Question 6. It is one of the essay questions from the 2024 Waec Model Questions Vol1 Biology examination.

The question covers Excretion .

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