Nernst Equation for Ionic Equilibrium Potential
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Questions and Answers

What is the typical value of resting membrane potential?

  • -70mV (correct)
  • +30mV
  • -50mV
  • -90mV
  • Which ions have a higher concentration inside the cell compared to outside?

  • Cl- ions
  • Ca2+ ions
  • Na+ ions
  • K+ ions (correct)
  • What is responsible for establishing the Na+ and K+ concentration difference in cells?

  • Sodium-Potassium pump (correct)
  • Nernst equation
  • Ion channels
  • Phosphates and proteins
  • Which type of cells are capable of self-generation of electrochemical impulses at their membranes?

    <p>Excitable cells</p> Signup and view all the answers

    What is the main factor contributing to the establishment of membrane potential?

    <p>Unequal distribution of positive and negative charges</p> Signup and view all the answers

    What does the Na, K ATPase pump do in maintaining cellular function?

    <p>Establishes concentration differences of Na+ and K+ ions</p> Signup and view all the answers

    Which ion shows passive movement out of the cell at rest?

    <p>K+ ions</p> Signup and view all the answers

    What happens to the inside of the membrane in the resting state?

    <p>-50mV</p> Signup and view all the answers

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