KROK 1 2011 – Question 49 · KROK (Medicine) · Physiology
As a result of activation of the ion channels of the external membrane the rest potential of an excitable cell has greatly increased. What channels were activated?
- A. Potassium channels
- B. Sodium channels
- C. Slow calcium channels
- D. Sodium and calcium channels
- E. Fast calcium channels
Hint
Work out which ion movement through the membrane would make the cell interior more negative, and compare the equilibrium potentials of the ions involved.
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