Waec Model Questions Vol1 2022 Biology Question 22
Practice objective / multiple choice question 22 from the 2022 Waec Model Questions Vol1 Biology examination.
A student drinks 2 L of a solution that contains 0.5 g of urea. The urea distributes uniformly in the extracellular fluid, whose volume is 20 L. The kidneys filter plasma at a rate of 120 mL·min⁻¹ for 4 h. During filtration, 99% of the filtered water is re‑absorbed, while 85% of the filtered urea is re‑absorbed. Assuming no metabolic loss of urea, how many grams of urea are excreted in the urine?
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About This Question
This is Waec Model Questions Vol1 2022 Biology Question 22. It is a objective / multiple choice question from the 2022 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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