Waec Model Questions Vol1 2017 Biology Question 2
Practice objective / multiple choice question 2 from the 2017 Waec Model Questions Vol1 Biology examination.
A person drinks 2 L of water that contains 0.5 g of urea per litre. The kidneys filter plasma at a glomerular filtration rate (GFR) of 120 mL min⁻¹. Plasma urea concentration is 0.3 g L⁻¹, and 85 % of the filtered urea is re‑absorbed. Assuming the urine volume equals the water intake, calculate (a) the total amount of urea excreted in a day and (b) the concentration of urea in the urine (in g L⁻¹).
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About This Question
This is Waec Model Questions Vol1 2017 Biology Question 2. It is a objective / multiple choice question from the 2017 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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