Waec Model Questions Vol1 2019 Biology Question 6

Practice essay / theory question 6 from the 2019 Waec Model Questions Vol1 Biology examination. This question covers Excretion .

Waec Model Questions Vol1 2019 Biology Essay / Theory

Topic: Excretion

Question 6 WAEC_MODEL_QUESTIONS_VOL1 • 2019 • BIOLOGY • essay

A 20‑year‑old male presents with polyuria and polydipsia. Laboratory investigations give the following results: fasting blood glucose = 12 mmol/L, urine specific gravity = 1.005, and 24‑hour urine volume = 3.0 L.

Question Parts

( a )

Identify the renal abnormality that most directly explains the low urine specific gravity and describe the physiological basis for this abnormality.

( b )

Estimate the approximate concentration of glucose in the urine (mmol/L). Show the reasoning and any assumptions you make.

( c )

Outline two long‑term complications that may arise from chronic uncontrolled excretion of glucose and suggest one dietary measure that could help mitigate each complication.

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About This Question

This is Waec Model Questions Vol1 2019 Biology Question 6. It is one of the essay questions from the 2019 Waec Model Questions Vol1 Biology examination.

The question covers Excretion .

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