Gce Model Questions Vol1 2025 Biology Question 45
Practice objective / multiple choice question 45 from the 2025 Gce Model Questions Vol1 Biology examination.
In a certain mammal the volume of urine produced per hour (V, in mL) is inversely proportional to the difference between plasma osmolality (O, in mOsm·kg⁻¹) and a constant 280, according to V = k / (O - 280). When O = 295 mOsm·kg⁻¹ the animal excretes 200 mL of urine per hour. Using this information, determine the percentage decrease in urine volume when plasma osmolality rises to 310 mOsm·kg⁻¹.
Answer Options
About This Question
This is Gce Model Questions Vol1 2025 Biology Question 45. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.