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 one of the objective questions from the 2021 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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