Neco Model Questions Vol1 2022 Biology Question 14
Practice objective / multiple choice question 14 from the 2022 Neco Model Questions Vol1 Biology examination.
A plant cell has an internal potassium concentration of \(100\ \text{mM}\) and an external concentration of \(10\ \text{mM}\). The membrane potential is \(-70\ \text{mV}\) (inside negative). Using the Nernst equation at \(25^{\circ}\text{C}\) (\(RT/F \approx 25.7\ \text{mV}\)), determine the direction of net movement of \(K^{+}\) ions through a potassium channel (into or out of the cell).
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This is Neco Model Questions Vol1 2022 Biology Question 14. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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