Gce Model Questions Vol1 2022 Biology Question 10
Practice objective / multiple choice question 10 from the 2022 Gce Model Questions Vol1 Biology examination.
A drug diffuses across a capillary wall of thickness \(\Delta x = 0.01\) cm. The diffusion coefficient is \(D = 1.2\times10^{-5}\) cm² s⁻¹ and the concentration difference across the wall is \(\Delta C = 0.8\) mol cm⁻³.\n(a) Using Fick's first law \(J = -D\,\frac{\Delta C}{\Delta x}\), calculate the diffusive flux \(J\) in mol cm⁻² s⁻¹.\n(b) If the capillary surface area is 2 cm², how many moles of drug are transferred in one minute?
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This is Gce Model Questions Vol1 2022 Biology Question 10. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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