Neco 2023 Biology Question 43
Practice objective / multiple choice question 43 from the 2023 Neco Biology examination.
A cell has an internal glucose concentration of 5 mM and an external concentration of 15 mM. Glucose can enter the cell by facilitated diffusion across a membrane with permeability coefficient \(P = 1.2 \times 10^{-5}\,\text{cm s}^{-1}\) and membrane area \(A = 1.0 \times 10^{-4}\,\text{cm}^2\). In addition, a Na⁺/glucose symporter actively transports glucose into the cell at a rate of \(2.0 \times 10^{-12}\,\text{mol s}^{-1}\). Assuming steady state, calculate the net rate of glucose entry into the cell (in mol·s⁻¹).
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About This Question
This is Neco 2023 Biology Question 43. It is one of the objective questions from the 2023 Neco Biology examination.
Difficulty level: Medium .
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