Neco 2020 Biology Question 48
Practice objective / multiple choice question 48 from the 2020 Neco Biology examination.
The normal plasma calcium concentration is 2.5\,mM. In the absence of hormonal regulation, the kidneys excrete calcium at a constant rate of 0.10\,mmol\,min\^{-1}. Parathyroid hormone (PTH) reduces this excretion by 40\% of the baseline rate. A drug administered to the patient diminishes the PTH‑induced reduction in calcium reabsorption by 30\% of the amount that PTH would have reabsorbed. What is the new calcium excretion rate (in mmol\,min\^{-1}) after the drug effect?
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About This Question
This is Neco 2020 Biology Question 48. It is one of the objective questions from the 2020 Neco Biology examination.
Difficulty level: Medium .
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