Waec Model Questions Vol1 2018 Biology Question 13
Practice objective / multiple choice question 13 from the 2018 Waec Model Questions Vol1 Biology examination.
A subject has a plasma osmolarity of 285 mOsm kg⁻¹. After a period of water deprivation, his urine osmolarity rises to 800 mOsm kg⁻¹ and his urine volume for the day is 0.5 L. (a) Calculate the total amount of solute excreted in that day. (b) Considering that the maximal concentrating ability of human kidneys is about 1200 mOsm kg⁻¹, state whether the kidneys are concentrating urine maximally.
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About This Question
This is Waec Model Questions Vol1 2018 Biology Question 13. It is a objective / multiple choice question from the 2018 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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