Neco Model Questions Vol1 2025 Biology Question 8
Practice objective / multiple choice question 8 from the 2025 Neco Model Questions Vol1 Biology examination.
In a hormonal feedback system the secretion rate \(S\) (units h\(^{-1}\)) follows \(S = \frac{S_{\max}}{1+(C/K)^{n}}\) where \(C\) is the hormone concentration (µg dL\(^{-1}\)), \(S_{\max}=100\), \(K=5\) and \(n=2\). Clearance is proportional to concentration: clearance \(= kC\) with \(k=10\). A drug reduces \(S_{\max}\) by 20 % and increases \(k\) by 15 %. Determine the new steady‑state concentration \(C\) (µg dL\(^{-1}\)).
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This is Neco Model Questions Vol1 2025 Biology Question 8. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Biology examination.
Difficulty level: Hard .
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