Exam problems that link physical concepts with electrical phenomena in living cells

We present a collection of biophysics examination problems that focus on electrodiffusion, the superposition principle, and currents in RC circuits, leading towards an understanding of the Hodgkin-Huxley model of action potentials. These problems link basic concepts in electricity to the physiology of living cells. The models described in these problems are intended help students develop an understanding of electrical processes in cells. Our work shows how introductory-level electricity courses can be taught in parallel with basic cell (electro)physiology and how basic concepts of electric circuits apply to cellular phenomena. (C) 2022 Published under an exclusive license by American Association of Physics Teachers.