Waec Model Questions Vol1 2023 Biology Question 40

Practice objective / multiple choice question 40 from the 2023 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2023 Biology Objective / Multiple Choice Medium Difficulty
Question 40 WAEC_MODEL_QUESTIONS_VOL1 • 2023 • BIOLOGY • objective

In a renal clearance test, a subject has a urine flow rate of 1.2 mL min⁻¹. The concentration of inulin in plasma is 0.5 mg mL⁻¹ and in urine is 2.0 mg mL⁻¹. (a) Calculate the glomerular filtration rate (GFR). (b) If the renal plasma flow (RPF) is 600 mL min⁻¹, determine the filtration fraction and state whether it lies within the normal range (20-30 %).

Answer Options

A. GFR = 2.4 mL min⁻¹; Filtration fraction = 0.004 (0.4 %); below the normal range.
B. GFR = 4.8 mL min⁻¹; Filtration fraction = 0.08 (8 %); below the normal range.
Correct Answer C. GFR = 4.8 mL min⁻¹; Filtration fraction = 0.008 (0.8 %); below the normal range.
D. GFR = 4.8 mL min⁻¹; Filtration fraction = 0.008 (0.8 %); within the normal range.
Correct Answer
C
Correct Option:
GFR = 4.8 mL min⁻¹; Filtration fraction = 0.008 (0.8 %); below the normal range.

About This Question

This is Waec Model Questions Vol1 2023 Biology Question 40. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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