Neco 2022 Biology Question 42
Practice objective / multiple choice question 42 from the 2022 Neco Biology examination.
A plant leaf cell is placed in a sucrose solution of 0.3 M. The cell's internal solute concentration is 0.2 M. The membrane water permeability coefficient is \(5\\times10^{-5}\) m·s\(^{-1}\)·MPa\(^{-1}\). Assuming osmotic pressure \(\\pi = i C R T\) (with \(i=1\), \(R=0.0831\) L·bar·K\(^{-1}\)·mol\(^{-1}\), \(T=298\) K), calculate the net water flux (in µm³·s\(^{-1}\)) across the membrane if the cell surface area is \(2\\times10^{-9}\) m². (Note: 1 bar = \(10^{5}\) Pa, 1 µm³ = \(10^{-18}\) m³.)
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About This Question
This is Neco 2022 Biology Question 42. It is one of the objective questions from the 2022 Neco Biology examination.
Difficulty level: Medium .
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