Neco Model Questions Vol1 2017 Biology Question 11
Practice objective / multiple choice question 11 from the 2017 Neco Model Questions Vol1 Biology examination.
In the regulation of blood glucose, insulin secretion follows the linear relation (s_i = a\,(G - G_{set})\) where (G) is the glucose concentration (mmol/L), (G_{set}=5\) mmol/L, and (a=0.5\) (units·min(^{-1}\)·mmol(^{-1}\)). Insulin removes glucose at a rate (R_{rem}=k_i\,I\) with (k_i=0.8\) (mmol·L(^{-1}\)·min(^{-1}\) per unit of insulin) and insulin degrades at a rate (0.1 I\) per minute. At steady state the net change in glucose is zero: \(\text{input}=R_{rem}\). After a meal the glucose input rises to \(0.6\) mmol·L(^{-1}\)·min(^{-1}\). Assuming the system quickly reaches a new steady state, what is the new steady‑state glucose concentration (G) (to one decimal place)?
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This is Neco Model Questions Vol1 2017 Biology Question 11. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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