Neco Model Questions Vol1 2024 Biology Question 34
Practice objective / multiple choice question 34 from the 2024 Neco Model Questions Vol1 Biology examination.
A plant cell membrane has a permeability coefficient for glucose of \(P = 1.2\times10^{-5}\) cm s⁻¹. The external glucose concentration is \(0.8\) mM and the internal concentration is \(0.2\) mM at 25 °C.\n(a) Calculate the passive diffusive flux \(J_{passive}\) (in mol cm⁻² s⁻¹) using Fick's law \(J = P(C_{out}-C_{in})\).\n(b) If a carrier‑mediated active transport system adds an influx of \(2\times10^{-7}\) mol cm⁻² s⁻¹ into the cell, determine the total net influx of glucose.
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This is Neco Model Questions Vol1 2024 Biology Question 34. It is one of the objective questions from the 2024 Neco Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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