Igcse Model Questions Vol1 2019 Biology Question 1
Practice objective / multiple choice question 1 from the 2019 Igcse Model Questions Vol1 Biology examination.
A person's blood glucose concentration falls linearly from 9 mmol L⁻¹ to 6 mmol L⁻¹ over 10 min after a meal. The pancreas secretes insulin at a rate of \(3\ \mu\text{U mL}^{-1}\) per minute for each mmol L⁻¹ that the glucose concentration exceeds 5 mmol L⁻¹. Insulin is removed from the bloodstream at a constant rate of \(5\ \mu\text{U mL}^{-1}\) per minute. Assuming the rates apply continuously, what is the net increase in insulin concentration in the blood after the first 5 minutes? Give your answer to two decimal places (µU mL⁻¹).
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About This Question
This is Igcse Model Questions Vol1 2019 Biology Question 1. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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