Waec Model Questions Vol1 2021 Biology Question 22

Practice objective / multiple choice question 22 from the 2021 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2021 Biology Objective / Multiple Choice Medium Difficulty
Question 22 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • BIOLOGY • objective

Substance X is freely filtered by the glomeruli and is neither secreted nor reabsorbed. Its plasma concentration is 0.15 mg mL⁻¹, its urine concentration is 0.45 mg mL⁻¹ and the urine flow rate is 1.2 mL min⁻¹. Calculate the renal clearance of X (in mL min⁻¹) and state what percentage of the normal adult glomerular filtration rate (≈125 mL min⁻¹) this clearance represents.

Answer Options

Correct Answer A. 3.6 mL/min (≈2.9 % of normal GFR)
B. 1.8 mL/min (≈1.4 % of normal GFR)
C. 5.0 mL/min (≈4.0 % of normal GFR)
D. 2.4 mL/min (≈1.9 % of normal GFR)
Correct Answer
A
Correct Option:
3.6 mL/min (≈2.9 % of normal GFR)

About This Question

This is Waec Model Questions Vol1 2021 Biology Question 22. It is a objective / multiple choice question from the 2021 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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