Neco 2025 Biology Question 30
Practice objective / multiple choice question 30 from the 2025 Neco Biology examination.
Blood calcium concentration is normally \(1.2\) mmol/L. In a patient it has fallen to \(1.0\) mmol/L. Parathyroid hormone secretion increases bone resorption releasing calcium at a rate of \(0.05\) mmol/L per hour and enhances renal reabsorption adding \(0.02\) mmol/L per hour. Assuming no other inputs, how many hours will be required for the calcium level to return to the normal value of \(1.2\) mmol/L? Give your answer to one decimal place.
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About This Question
This is Neco 2025 Biology Question 30. It is one of the objective questions from the 2025 Neco Biology examination.
Difficulty level: Medium .
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