Waec Model Questions Vol1 2023 Biology Question 41
Practice objective / multiple choice question 41 from the 2023 Waec Model Questions Vol1 Biology examination.
The kidneys filter about 180 L of plasma each day. Ninety‑nine per cent of the filtered water is re‑absorbed in the proximal tubule and loop of Henle. The remaining water reaches the distal tubule and collecting duct. If antidiuretic hormone (ADH) is absent, only 10 % of this water is re‑absorbed; if ADH is present, 80 % is re‑absorbed. What is the ratio of the daily urine volume produced when ADH is absent to that produced when ADH is present?
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About This Question
This is Waec Model Questions Vol1 2023 Biology Question 41. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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